L-Cystine CAS 56-89-3

01 Overview

L- Cystine helps strengthen the immune system, reduce damage from free-radicals, repair RNA-DNA in the cells and assimilation of vitamin B6. L-Cystine is closely related to the amino acid, L-Cysteine.

02 Details

healthy L-Cystine / Thinning Hair Powder food steroids CAS 56-89-3



1.Quick Details


CAS No.: 56-89-3
Other Names:L-Cystine
EINECS No.:200-296-3
Place of Origin: China (Mainland)
Type:Vitamins, Amino Acids and Coenzymes
Grade Standard:Feed Grade,Food Grade,Medicine Grade
Model Number:MK5854
Color:White Crystal Powder


2. Product Description:


Cystine is a crystalline, sulfur-containing amino acid, formed from two molecules of the amino acid cysteine. It can be converted to cysteine by reduction and was discovered in 1810 but was not recognized as a component of proteins until 1899, when it was isolated from animal horn – it is particularly abundant in skeletal and connective tissues, hair and digestive enzymes.
L- Cystine helps strengthen the immune system, reduce damage from free-radicals, repair RNA-DNA in the cells and assimilation of vitamin B6. L-Cystine is closely related to the amino acid, L-Cysteine. L-Cystine aids in preventing the side effects of chemotherapy and radiation. It increases L-Glutathione levels in the lungs, liver, kidney and bone marrow. L-Cystine also has an anti-aging effect on the body which can reduce the accumulation of age spots.


3. Specification:
The cystine formation reaction starting from cysteine is the following one:Formation reaction of cystine starting from cysteine.The reaction starts with two cysteine molecules. When the reaction has finished, it produces a cystine molecule and also 2 protons (H+) and 2 electrons (e-), due to the disulfide bond that is formed between the two sulfurs of the two cysteines.


Product name L-Cystine
Usage 1. Used in biochemical research. Preparation of biological medium. Used in biochemical and nutritional research, medicine has the body to promote the cell oxidation and reduction function, increase white blood cell and prevent pathogens such as development role. Mainly used for all kinds of hair loss syndrome. Also used for dysentery, typhoid, influenza and acute infectious disease, asthma, neuralgia, eczema, and various poisoning disease, etc., and maintain the function of protein configuration. They are also used as food additive agent.
2. Biochemical reagent, used for biological preparation of media. Is amino acid infusion and compound amino acid preparation of important component.
3. Be feed nutrition enhancer, be helpful for animal growth, increase the weight and liver and kidney function, improve the quality of fur.
4. Can make cosmetic additives, can promote wound healing and prevent skin allergy and treatment effect such as eczema.
Dosage 200-400mg per day (usually in 2-3 doses throughout the day).



L-Cystine Basic information 

Product Name: L-Cystine
Synonyms: (r-(r*,r*))-3,3’-dithiobis(2-aminopropanoicacid);1-cystine;3,3’-dithiobis(2-amino-,(r-(r*,r*))-propanoicaci;3,3’-dithiobis(2-aminopropanoicacid);3,3’-dithiobis-l-alanin;3,3′-Dithiobis(2-aminopropanoic acid);3,3′-Dithiodialanine;Alanine, 3,3′-dithiobis-
CAS: 56-89-3
MF: C6H12N2O4S2
MW: 240.3
EINECS: 200-296-3
Product Categories: Food and Feed Additive;Amino Acids;Amino Acid Derivatives;Cysteine [Cys, C];Nutritional Supplements;L-Amino Acids;Amino Acids;amino


L-Cystine Chemical Properties

mp >240 °C (dec.)(lit.)
alpha -224 º(c=2 in 1M HCl)
density 1.68
refractive index -222.5 ° (C=1, 1mol/L HCl)
storage temp. Store at RT.
solubility 1 M HCl: 100 mg/mL
Water Solubility 0.112 g/L (25 ºC)
Merck 14,2782
BRN 1728094
Stability: Stable. Incompatible with strong oxidizing agents.



Company Introduction:

(1) High Quality:Wuhan Wang Lianshang Biotechnology Co., Ltd. is a steroids manufacturer with its own lab and factory.
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