Products

Product name: L-Homocystine

Alias: (2S,2'S)-2,2'-Diamino-(4,4'-dithiobisbutyric acid); 3,3'-(Dithiobismethylene)bisalanine; 4,4'-Dithiobis[(2S)-2-aminobutanoic acid]; 4,4'-Dithiobis[(S)-2-aminobutanoic acid]; 4,4'-Dithiobis[(S)-2-aminobutyric acid]; (2S,2'S)-4,4'-Disulfanediylbis(2-aMinobutanoic acid); (2S,2'S)-4,4'-Dithiobis[2-aMinobutanoic Acid]; [S-(R*,R*)]-4,4'-Dithiobis[2-aMinobutanoic Acid]

CAS: 626-72-2

Structural formula:

MDL: MFCD00020391

Molecular formula: C₈H₁₆N₂O₄S₂

Molecular weight: 268.35

SMILES: N[C@H](C(=O)O)CCSSCC[C@@H](C(=O)O)N

EINECS: 210-962-5

 

Appearance: white or off-white crystalline powder

Loss on drying: ≤0.52%

Content (HPLC): ≥98% min

Melting point: 281-284°C (dec.) (lit.)

Packaging: 15kg/barrel or as per customer's requirement

Shelf life: 6 months

Optical rotation 77º (c=1% in 1NHCl)

Boiling point 507.6±50.0°C(Predicted)

Density 1.443±0.06g/cm3(Predicted)

Storeat0-5°C

Acid dissociation constant (pKa) 1.90±0.10 (Predicted)

BRN 1728583

InChIKeyZTVZLYBCZNMWCF-WDSKDSINSA-N

CAS DataBase Reference

EPA chemical information L-Homocystine (626-72-2)

 

Uses:

1. Applications in the field of biopharmaceuticals.

In the field of medicine, L-Homocystine, due to its cooperative effect in living organisms, has a broad detoxifying effect on poisons such as formic acid, acetic acid, carbon tetrachloride, alcohol, etc., and can maintain the activity of thiol enzymes in the generation of keratin. L-Homocystine hydrochloride has the Use of being able to restore liver function, and also has a certain therapeutic effect on serum disease, antimony agent and radioactive drug poisoning.

Derivatives of L-Homocystine hydrochloride can be used as drugs, for example, ethyl L-Homocystine hydrochloride is a respiratory soluble expectorant, which can quickly break the mucin in the sputum by its special S-H group, so that the viscosity of the mucus is rapidly reduced, thus only a few minutes are needed to quickly cough up or suck out the sputum. Because of its function, it can quickly treat the sputum viscosity and dyspnea caused by acute and chronic bronchitis, asthma, expansion, tuberculosis, pneumonia, emphysema, etc. At the same time, L-Homocystine hydrochloride and its derivatives also have the effects of anti-inflammatory, analgesic, and inhibiting the growth of bacteria and cancer cells.

2. Applications in the food industry

In the food industry, L-homocysteine, when heated together with five-carbon or six-carbon sugars, can produce the fragrance of meat, and the addition of half-cysteine to corn processing products can increase the fragrance of corn by 10-40 times. Therefore, half-cysteine is widely used in meat products, dairy products, bread and other products, which can enhance the stability of food, enhance the stabilizing effect of ascorbic acid and slow down the automatic oxidation of fat, so it has a positive effect on the storage and aroma of food.

Adding L-Homocystine to natural fruit juice can prevent vitamin oxidation and prevent the fruit juice from turning brown, and extend the storage time of natural fruit juice. In Japan, L-Homocystine is often added to milk to prevent milk powder from spoiling, and drinking it regularly can prolong life.

3. Applications in cosmetics

L-Homocystine has the function of preventing biological aging. The introduction of L-Homocystine into cosmetics can prevent skin aging, make the skin rosy, and it can also be used as a hair care product to keep the hair style for a long time.

 

Safety information

Safety instructions 22-24/25

WGK Germany 3

Customs code 29309090