Category Archives: Antiseptic

Triclosan in response to oncogenic

Experimental respond
Bede April 2005 issued a statement on the experiment, three main points: First, triclosan-containing products will not cause health problems directly; Second, this experiment using a detergent containing triclosan does not include toothpaste; third is used in toothpaste triclosan, has been the global number of supervisory and administrative agencies, including the U.S. food and Drug Administration approval.
Consistent standards
Of mandatory national standards promulgated in 2008 (GB22115-2008) specification of materials used toothpaste, toothpaste triclosan allows you to add, but the content must not exceed 0.3%.
November 29, 2011, deputy director of the China Oral Care Products Industry Association for Science and Technology Committee, the National Light Industry Products Quality Supervision and Inspection toothpaste Wax Center Deputy Director Sun Orient introduction, the standard-setting process carried out many experiments, read a lot at home and abroad literature and information, with the majority of the world is consistent with national standards.
March 22, 2011, the European Scientific Committee on Consumer Safety again triclosan safety assessment carried out and published a thick “triclosan” report, a detailed record of medicine, toxicology and many other safety experiments the results. Opinion final conclusion: in toothpaste, hand lotion, shower gel, deodorant cream in order to use a maximum concentration of 0.3% triclosan, is considered to be safe.
No harm
Sun introduced the east, there are no scientific studies to prove the toothpaste triclosan cause cancer. Triclosan added to toothpaste in our country and many countries in the world are allowed. “Triclosan 40 years ago began to be used in medical equipment sterilization, as a preservative added to toothpaste has also been more than 20 years and we currently believe that as long as the strict implementation of national standards, toothpaste triclosan is not hazardous to human health. “

Triclosan chemical products

In the United States, triclosan is mainly produced by Ciba Specialty Chemicals (Ciba Specialty Chemicals) American factories, the company uses Irgasan DP300 (triclosan new DP300) as a trade name. In China, a major manufacturer of triclosan Tianjin Braun disinfectant limited liability company [5], are generally used directly as a trade name of triclosan.
In other countries and regions, triclosan usually have some of the following trade names:
CH-3565 triclosan CH 3635 Irgasan Ch 3635 Irgasan DP 300 Lexol 300 Ster-Zac.
TCS triclosan triclosan triclosan Jamie Dawson of the TU pure new antibacterial triclosan new DP300 Wei Wei Jie Jie Ling -100 pure.
Product Specifications:
Content ≥99% Melting point 93-98 ℃.
Color gray or white crystals Loss on drying ≤0.5%.
Residue on ignition ≤0.1% Heavy metals ≤20PPM.
Triclosan is widely used for efficient medicated soap (hygiene soap), health lotion), in addition to underarm (foot aerosol), hand sanitizer, wound disinfectant sprays, medical disinfectants, hygiene cleanser (cream), air fresheners and refrigerator deodorant, but also for the health embalmed fabric finishing and plastics, higher purity Chris grace is also widely used in the treatment of gingivitis, periodontitis and oral ulcers efficacy of toothpaste and mouthwash, recommended concentration of 0.05% to 0.3%.

Sodium thiosulfate purposes Profile

When tanning dichromate reducing agent, nitrogen exhaust neutralizer, mordant, straw and
Hair bleach and bleach pulp dechlorination time. Also for tetraethyl lead, dyes intermediates manufacturing and silver ore mention reducing electroplating industry, water purification works purifying agent.
In the textile industry for bleaching cotton after dechlorination agent, sulfur dyed wool fabric dye, indigo dye anti-white agents, pulp dechlorination agent, the pharmaceutical industry as detergents, disinfectants and fading agents. [3] analytical reagent for chromatography reagents, drip Determination of cobalt, photographic fixer, dechlorination agent capacity analysis commonly used reagents, sodium, preparation of injectables and double sugar iron urea medium mordant.
Sodium thiosulfate and cyanide may also be used as a detoxifying agent.

The main purpose of sodium fluoride

Phosphate coating industry for the accelerator, so that stable phosphate solution, phosphate refinement, improved phosphate coating performance. Aluminum and its alloys phosphate in great danger of closure has a negative catalytic Al3 +, so phosphide smooth wood preservatives, agricultural pesticides, fungicides brewing industry, pharmaceutical preservatives, welding flux, alkaline zinc zinc salts additives and enamel, paper and so on.

Butylparaben use

Catalytic Synthesis of a sulfuric acid, butyl paraben

Sulfuric acid catalyzed esterification method is the classic method of synthetic esters, synthetic parabens, the hero Hasegawa, Atsushi Maekawa governance and Xie Wei Yang and has long been reported. Such a catalytic reaction for a long time, low yield, alcohol consumption, and improve the use of p-hydroxybenzoic acid, n-butanol, benzene and sulfuric acid molar ratio of 1: 3.5: 1: 0.015, refluxing 1 h , n-butyl paraben yield up to 99.12%, with an average yield of 97.58%.
Ming et al pipe coil in toluene as the solvent, when p-hydroxybenzoic acid, n-butanol and toluene molar ratio of 1: 4: 2, with sulfuric acid as a catalyst, refluxing 4 h, then the solvent was distilled off and 50% alcohol, cooling precipitation precipitation, filtration, n-butyl paraben was 89.3% yield. Zhengxue Zhong et without organic solvent with n-butanol as a dehydrating agent, p-hydroxybenzoic acid, n-butanol and sulfuric acid molar ratio of 1: 3.5: 0.15, refluxing 0.75 h, p-hydroxybenzoate n-butyl formate yield of 98.4%.
To improve the storage and ease of use, tubes and the like to the disc-ming sulfate SO4 2- / bentonite catalyst (mass fraction of about 5%), with toluene as the solvent, when p-hydroxybenzoic acid, n-butanol and toluene molar ratio of 1: 4 : 2, in the <110 ℃ stirred refluxing 5h, then steamed out 50 percent of solvents and alcohol, cooled to precipitate precipitation, filtration to obtain the product of n-butyl paraben, yield 88.6%.
To accelerate the reaction process under microwave irradiation synthesis of n-butyl paraben, when p-hydroxy benzoic acid, n-butanol molar ratio of 1: 4, the use of sulfuric acid as a catalyst in the working frequency of the microwave radiation source 2450MHz 30min, n-butyl paraben yield of 85.1%, rather than use the microwave, you need to refluxing 300min, product yield was 83.8%, so the reaction rate increased by 10-fold.
2 sulfonic acid catalytic synthesis of butyl paraben

2.1 p-toluenesulfonic acid
Since the sulfuric acid cause side reactions when heated organic etherification, oxidation, carbonization, sulfonation, while its corrosion resistance, operation, use and storage is not convenient and safe. Toluenesulfonic acid (p-CH3C6H4SO3H.H2O) is an organic acid, sulfuric acid can overcome many shortcomings, easy to use, is a good catalyst for esterification, can be synthesized in high yields of hydroxy esters. The author has used 0.05mol paraben, 0.30mol alcohol in 0.0052mol (1.0g) under refluxing toluene sulfonic acid catalysis 3h, n-butyl paraben yield of 95.9% . Since the p-toluenesulfonic acid dissolved in an organic reaction system, the reaction liquid after the reaction the acid is still strong, the need for treatment, there is a certain waste liquid, the catalyst can not be reused. Shi Lei, such as 10g of granular activated carbon immersed in 60mL mass fraction of 25% aqueous solution of toluene sulfonic acid 30h, drained after too 15.31g, immobilization rate of 53.10%, select this catalyst 0.6g, 0.1mol hydroxybenzoic acid, 0.3mol butanol refluxing 3h, n-butyl paraben yield of 98.02%, the catalyst can be reused five times, the yield was still up 97.65% [9 ]. This method is easy to operate, reducing environmental pollution, high ester yield, catalyst reuse performance, is a good catalyst.

2.2 amino acid
Sulfamic acid (H2N-SO2OH) with p-toluenesulfonic acid, as is also an inexpensive, readily available, stable solid. Transport, storage, easy to use, except that it is insoluble in organic reaction system, easy separation, can be reused, for small equipment corrosion, high yield synthesis products is a good catalyst for the synthesis of butyl paraben. When the right-hydroxy acid, n-butanol and the amino acid molar ratio of 1: 4: 0.41 refluxing 3h, n-butyl paraben yield of 97.9%. When converted to butanol isobutanol, p-hydroxybenzoic acid, isobutyl alcohol, an amino acid molar ratio of 1: 6: 0.52 refluxing 3h, p-hydroxybenzoic acid yield of 90.7 Isobutyl %.
2.3 strong acid cation exchange resin
Strong acid cation exchange resin is a polymer acid, cheap, no corrosion of equipment, do not pollute the environment, does not cause side effects, and the resin is insoluble in the reaction system, recyclable, recycled and reused, easy to operate , product yield, is an effective catalyst for industrial production. Using five kinds of models of the resin (D72, D61, dry hydrogen resin, HD-8 and JK008) catalytic synthesis of ethyl paraben, Discovery JK008 resin highest activity. When the p-hydroxybenzoic acid to the resin mass ratio of 1: 0.08, p-hydroxybenzoic acid with n-butanol molar ratio of 1: 5.5, refluxing 4.5h, obtained by gas chromatographic analysis of n-butyl p-hydroxybenzoate ester yield of 98.0%, JK008 resin has good reuse catalytic performance.
Introducing benzene sulfonic acid groups on the benzene ring zirconium, made ​​a similar strong acid cation exchange resin solid acid – acid sulfonated benzene zirconium (ZSPP), catalytic synthesis of n-butyl paraben. Specific conditions: 0.05mol paraben, 0.20mol n-butanol, 1g ZSPP catalyst at 117¯120 ℃ refluxing 8 h, n-butyl paraben yield of 92%, this catalyst can reuse reused 10 times, the yield is still about 90%, the catalyst has a high thermal stability (over 250 ℃ was released SO2) than the sulfonic acid resin, an organic substance at high temperature coking, no corrosion of equipment application prospect is a solid acid catalyst promising.

3 Catalytic Synthesis of inorganic salts and oxides of butyl paraben
Catalytic and catalytic sulfuric acid were discussed earlier proton acid catalysis, catalytic inorganic salts and oxides vary due to different compounds. There are a large class of inorganic materials is cheap and easy to get the Lewis acid, the metal atom has with the carboxylic acid carbonyl oxygen ligands empty track, which has catalyzed esterification, while their small equipment corrosion, pollution reduction, catalyst with less, is a good catalyst for the synthesis of certain esters. Iron (Ⅲ) electronegativity strong, Fe3 + in outer space orbit with the carboxylic acid carbonyl oxygen ligands. Liu Yong, etc. using Fe2 (SO4) 3 · xH2O catalytic synthesis of n-butyl paraben: 0.1mol paraben, 0.4mol n-butanol, 0.5g of the catalyst under refluxing 4h, acid conversion rate of 91.6%, after going alcohol, after recrystallization paraben, n-butyl ester yield of 85% fine. Acetate Catalyzed, who used hydroxybenzoic acid and n-butanol molar ratio of 1: 4 to 4% of the mass fraction (based on the total reactant meter) chloride as catalyst different refluxing 5 h, then the catalyst was filtered off, the alcohol is recovered by distillation, the crude ester are precipitated by the water, an alkali, washed with water, then ethanol – n-butyl p-hydroxybenzoate may, after finishing the water of crystallization yield of an ester, respectively:
Catalyst CaCL2 ZnCL2 FeCL3 · 6H2O ALCL3 · 6H2O
Ester yield /% 30307883
Thus, chloride has a catalytic role, especially FeCl3 · 6H2O and AlCl3 · 6H2O is a good catalyst for the synthesis of the esters. Previously, Zhang Jing Qing, who have also been reported: When right-hydroxy acid with n-butanol molar ratio of 1: 3.5, FeCl3 · 6H2O mass fraction (the total mass of reactants) of 5%, in 139¯ under 140 ℃ reaction 1.5h, 84.6% of the available yield of n-butyl paraben [17]. Wang Mingxing, etc. have also been studied: when hydroxybenzoic acid, n-butanol and FeCl3 · 6H2O molar ratio of 1: 2: 0.12 refluxing 3h, the yield of n-butyl paraben 95 .1% ¯96.3% [18]. Yao spring, also reported the catalytic effect of FeCl3 · 6H2O, in its optimum conditions, product yield was 98.9%.
Tin (II) is also high negative elements, such as the use of cost Prudential stannous oxide (SnO) as catalyst was successfully synthesized n-butyl paraben: 0.1mol paraben, 0.3mol n-butanol . 5gSnO, 140 ℃ refluxing 4h, acid conversion rate of 96%.
Since most of the inorganic chlorides hygroscopic and difficult to use and accurate storage, and they were dissolved in the reaction system, to the product separation and purification inconvenience. Ammonium ferric sulfate is a stable crystal, in addition to having the chloride advantages, it is not easy to absorb moisture, insoluble in the reaction system, the reaction to form a loose spherical solid, non-corrosive reaction equipment, is a good ester catalyst. Deng Xuzhong such as the use of its catalytic synthesis of n-butyl paraben: 0.1mol paraben, 0.35mol n-butanol, 1.0g catalyst refluxing 4 h, the crude ester yield of 93.7% , after recrystallization from ethanol the yield was 90.1% fine ester.
Li Xiaoli, such as the use of rare earth oxide, neodymium oxide (Nd2O3) catalytic synthesis of n-butyl paraben, its optimal reaction conditions: When right-hydroxy acid, n-butanol molar ratio of 1: 4, the amount of catalyst of 5% by mass of p-hydroxybenzoic acid, refluxing 4h, yield of the ester was 81.2% and the good catalytic effect is repeated, the method to reduce the corrosion of equipment and environmental pollution, has certain industrial value.
Catalytic inorganic discussed above is part of Lewis acid catalysis. The authors note monohydrate sodium bisulfate (NaHSO4 · H2O) is also a good esterification catalyst, inexpensive, readily available, and stable crystal properties, and its solution is strongly acidic, due to ionizing HSO4- have H + exists, belongs to the proton acid catalysis, capable of catalyzing the synthesis of butyl paraben: When hydroxybenzoic acid, n-butanol and sodium hydrogen sulfate monohydrate molar ratio of 1: 2: 0.072 when refluxing 5h, n-butyl paraben ester yield of 92.8%; when paraben, isobutyl alcohol and sodium hydrogen sulfate monohydrate molar ratio of 1: 3: 0.036 refluxing 7h, isobutyl paraben yield can also be 99%. Of microwave radiation sodium bisulfate next catalytic synthesis of butyl paraben work, the optimization of reaction conditions: when n (alcohol): n (acid): n (NaHSO4 · H2O) = 0.15: 0 .05: 0.058, using the power of 210W microwave radiation 28min, product yield was 93.6%. The catalyst and the reaction time is shortened, the remaining sodium bisulfite and has a repetitive catalytic performance due to their insoluble in the reaction system, the corrosion of the equipment is greatly reduced, there is a catalyst for industrial application.

N-acetyl-L-tyrosine (ACETYLTYROSINE) Information

Basic Information
Chinese name: N- Acetyl Tyrosine -L-
Chinese alias: Acetyl Tyrosine
English name: N-acetyl-L-tyrosine
English Synonyms: L-TYROSINE, N-ACETYL -; [1] ACETYLTYROSINE; ACETYL-L-TYROSINE; AC-TYR-OH; AC-TYROSINE; N-AC-L-TYR; N-ACEYL-L-TYROSINE; (2S) -2- (acetylamino) -3- (4-hydroxyphenyl) propanoate
CAS: 537-55-3
EINECS: 208-671-3
Formula: C11H12NO4
Molecular Weight: 222.2178
2 Physical Properties
Melting point: 149-152 ℃
Boiling point: 531.3 ° C at 760 mmHg
Flash Point: 275.1 ° C
Vapor Pressure: 4.07E-12mmHg at 25 ° C
Specific rotation of 47.5 ° (c = 2, water)
3 Use
N- acetyl tyrosine -L- important for fine organic chemical intermediates, widely used in medicine, pesticides, chemical industry and other fields.

L-threonine Use

1 is mainly used as nutritional supplements. Easy to generate heat with glucose Jiao Xiang and chocolate flavor, aroma role there. Can also be used for biochemical studies.
2 for nutritional supplements, threonine is an essential amino acid. Threonine often added to minors piglets and poultry feed, is the second limiting amino acid and poultry feed, pig feed third limiting amino acid. Added to wheat, barley and other grain-based feed.
3 nutritional supplements, also used in the preparation of amino acid infusion and a comprehensive amino acid preparations.
4 for the adjuvant treatment of digestive ulcers. Also can cure anemia and angina, aortic inflammation, heart failure and other cardiovascular disorders.
5 threonine (L- threonine) by W. C. Rose 1935 Isolation and identification from the fibrous protein hydrolyzate, has been shown to be essential amino acids was finally discovered, it is the second or third limiting amino acid in poultry, it has an extremely important role in animal physiology . Such as promoting growth, improve immune function, etc.; balanced dietary amino acids, amino acids closer to the ideal ratio of protein, thereby reducing animal protein in feed requirements. Lack threonine, can lead to reduced feed intake of animals, stunted, feed utilization decreased immune function suppression and other symptoms. In recent years, lysine, methionine synthetics been widely used in animal feed, threonine becoming affect animal performance limiting factor, further study of threonine help effectively guide the livestock and poultry production .
Threonine (L- threonine) is the animal itself can not be synthesized amino acids but much needed, can be used to precisely balance the amino acid composition of feed, animal growth to meet the need to maintain and improve weight gain and lean meat, lower feed meat ratio; feed ingredients to improve the nutritional value of low amino acid digestion, improve the performance of low-energy feed production; may reduce feed crude protein level, improve feed nitrogen utilization, reduce feed costs; can be used for pigs, chickens, ducks and senior aquatic feeding and breeding. L- threonine is the use of bio-engineering principles, corn starch and other raw materials through submerged fermentation, refining and production out of the feed additive. Adjustable feed amino acid balance, promote growth and improve meat quality, improve the nutritional value of feed ingredients with low amino acid digestion, producing low-protein diet, protein helps save resources, reduce the cost of feed ingredients, reduce animal manure and urine the nitrogen content, Chuqin ammonia concentration and release rate. Widely used to add piglet feed, pig feed, chicken feed, shrimp feed and eel feed.
6 threonine (L- threonine) in the decomposition of the body’s metabolism, not only through deamination and transamination role, but directly by threonine dehydratase, threonine dehydrogenase and threonine aldolase catalytic conversion of acid is an amino acid other substances, for example, threonine can be converted to butyryl coenzyme A, succinyl coenzyme a, serine, glycine and the like. Also threonine excess glucose can increase lysine -α- keto acid reductase activity, add the appropriate amount of threonine can eliminate excess lysine in the diet caused due to body weight gain decreased, liver, muscle tissue protein / deoxyribonucleic acid (DNA), ribonucleic acid (RNA) / DNA ratio decreased. Add threonine tryptophan or methionine also reduce the growth inhibition caused by excessive. According to reports, the chicken to absorb most of threonine in the duodenum, crop Mang and Proventriculus rapidly absorbed into the liver threonine protein deposition in the body.

Isothiazolinone Properties and Uses

Isothiazolin-one composed of 5 – chloro-2 – methyl – 4 – isothiazolin-3 – one (CMI) and 2 – methyl – 4 – isothiazolin-3 – one (MI) components. Isothiazolin-off one by bacteria and algae protein sky biocidal action key. Isothiazolin-one contact with the microorganisms that can rapidly and irreversibly inhibit their growth, leading to the death of microbial cells, so the common bacteria, fungi, algae has a strong inhibitory and killing effect. High killing efficiency, good degradation, with no residual, safe operation, good compatibility, stability, and low cost. With chlorine and most cation, anion and non-ionic surfactant miscible. When high doses isothiazolin-ketone biological slime stripping a significant effect.

Isothiazolin-ketone is a broad spectrum, high efficiency, low toxicity and non-oxidizing biocide. Widely used in oil, paper, pesticide, cutting oil, leather, ink, dye, leather and other industries.

Technical indicators:

Industry standard HG / T 3657-2008 Water treatment chemicals isothiazolin derivatives

Project Index
Class 1 Class 2
Exterior Brown transparent liquid Yellow or light green transparent liquid
Active content /% 14.0 to 15.0 1.50 ~ 1.80
pH value 2.0-4.0 2.0-5.0
Density (20 ℃) ​​g / cm 1.26 ~ 1.32 1.02 ~ 1.05
CMI / MI (mass percentage) /% 2.5-3.4 2.5-3.4


When isothiazolin ketones 2 products as sludge remover, dosing concentration of 150-300mg / L; when making fungicide, dosing once every 3-7 days, the dosage 80 ~ 100mg / L. With chlorine and other oxidizing biocides used simultaneously, can not be used in cooling water system containing sulfur. Isothiazolin-one quaternary ammonium salt, the effect will be better.

Isothiazolin-ketone used as industrial mildew, general concentration of 0.05-0.4%

Packaging and Storage

Isothiazolin-one plastic drum, 25Kg per barrel or according to user requirements; stored in a cool room, storage for ten months.


Isothiazolin-ketone is corrosive to skin and eye irritation, the operation should be equipped with protective goggles and rubber gloves, once contact with skin, eyes, rinse immediately with plenty of water. If contact with skin, immediately remove contaminated clothing and shoes, rinse with plenty of water for at least 15 minutes, acetic acid urea ointment applied to the affected area or burn ointment, and seek immediate medical attention

Hyaluronic acid Details

Glycosaminoglycans (formerly called mucopolysaccharides, amino polysaccharides and acidic polysaccharides) in the structure of the simplest kind, it is by repeating disaccharide units
GlcUA-β (1 → 3) -GlcNAc, with β-1,4 glycosidic linkage formed. In the body, often in free form or covalently (proteoglycan complexes) in the form of complexes present.
The surface of the molecule contains many hydrophilic groups, can draw their physical 1,000 to 10,000 times the volume of water, keeping the moisture of loose connective tissue is important; while the viscosity of the HA has a strong, and the joints with a vitreous Run wet and protection; well promote wound healing.
HA is present in the extracellular matrix of connective tissue of animals. Among them, the bovine vitreous, human umbilical cord and rooster combs are commonly used material extracted HA. HA is widely used in cosmetics, artificial joints, surgical lubricants and other products. United States Food and Drug Administration (FDA) approval in 2003 through the use of injection patches of skin wrinkles.

Glycine Use

[Use a]
For biochemical reagents, used in medicine, feed and food additives, fertilizer industry as a non-toxic agent decarbonization
[Use two]
For the pharmaceutical industry, biochemical tests and organic synthesis
[Uses three]
Glycine is mainly used as chicken feed nutritional additives.
[Uses four]
Also known as the amino acid glycine (aminoacetic acid), glycine ethyl ester hydrochloride intermediates in the synthesis of pyrethroid insecticides used in pesticide production, but also synthetic fungicide iprodione and solid glyphosate herbicide, another it is also used in fertilizers, pharmaceuticals, food additives, spices and other industries.
[Use five]
Nutritional supplements. Mainly used for flavoring and so on.
Flavored with alanine together for alcoholic beverages, the addition of: Wine 0.4%, 0.2% whiskey, champagne 1.0%. Others such as powdered soup about 2%; lees pickled foods 1%. Because it can to a certain extent was shrimp, cuttlefish flavor, can be used for sauces.
B. subtilis and E. coli have certain reproductive inhibition. It can be used as surimi products, preservatives such as peanut butter, add the amount of 1% to 2%.
Because glycine buffer having zwitterionic amino and carboxyl, so there is a strong cushioning. Taste for salt and vinegar can sense a dampening effect. Dosage salted products 0.3% ~ 0.7%, pickled goods 0.05% to 0.5%.
Antioxidant effect (using its metal chelation) added to butter, cheese, margarine extend the shelf life of 3 to 4 times. To make baked goods in lard stable, glucose 2.5% and 0.5% glycine. Adding 0.1% to 0.5% of wheat flour with the speed of cooking, and can play the role of flavoring. Medicine for antacids (hyperacidity), Muscular Dystrophy therapeutic agent antidotes. Synthetic materials also threonine amino acids.
According to the provisions of GB 2760-96 used as a spice.
[Uses six]
Used as a buffer for the preparation of tissue culture media, copper, gold and silver test, medicine for the treatment of myasthenia gravis and progressive muscular atrophy, hyperacidity, chronic enteritis, children and other high-proline hyperlipidemia disease.
[Purpose seven]
Treatment of myasthenia gravis and progressive muscular atrophy; treat excessive stomach acid ester disease, chronic enteritis (often in combination antacid); combination with aspirin, can reduce its stimulation of the stomach; treatment of children with high proline hyperlipidemia; as generate non-essential amino acid nitrogen source, adding a mixed amino acid injection.
[Uses eight]
The product is used as a solvent to remove carbon dioxide in the fertilizer industry. In the pharmaceutical industry, can be used as amino acid preparations, chlortetracycline buffer and as an anti-Parkinson’s disease drugs L- synthetic materials dopa, is ethyl imidazole intermediates, which itself is an adjunct therapy medicine, to treat neurological hyperacidity, gastric ulcer inhibiting excessive acid is also effective. Workers in the food industry for the synthesis of the wine, brewing products, meat processing and refreshing drink recipes and saccharin to-agent, as a food additive, glycine can be used alone as a condiment, but also with sodium glutamate, DL- alanyl acid, citric acid, etc. used in conjunction. In other industries, as a pH adjusting agent, added to the plating solution, or other amino acids used as starting materials. For biochemical reagents and solvents in organic synthesis and biochemistry.
[Purpose nine]
Metallochromic indicator, solvents.