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L-Cystine CAS No.:56-89-3

Chemical Name: L-Cystine CAS No.: 56-89-3Appearance: White crystals or crystalline powder

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L-Cystine Usage: 1.For biochemical research. Prepare biological culture medium. It is used in biochemistry and nutrition research, and in medicine, it can promote the oxidation and reduction of body cells, increase white blood cells and prevent the development of pathogenic bacteria. Mainly used for various alopecia. It is also used for acute infectious diseases such as dysentery, typhoid fever, influenza, asthma, neuralgia, eczema and various toxic diseases, etc., and has the function of maintaining protein configuration. It is also used as a food flavoring agent. 2. Biochemical reagents for the preparation of biological culture media. It is also an important component of amino acid infusion and compound amino acid preparations 3. As a feed nutrient fortifier, it is beneficial to animal development, increasing body weight and liver and kidney function, and improving the quality of fur. 4. It can be used as cosmetic additives to promote wound healing, prevent skin allergies and treat eczema. L-Cystine Packaging and Shipping: 25KG/drum L-Cystine Storage: Stored in a dry and ventilated warehouse; keep away from sunshine; avoid fire; avoid moisture.

NameL-Cystine
SynonymsCystine
L-Cystine
1-cystine
Dicysteine
(H-Cys-OH)2
H-(Cys)_2-OH
L-Cystine,food grade
3,3'-Dithiodialanine
3,3'-dithiobis-l-alanin
Alanine, 3,3'-dithiobis-
(H-Cys-OH)2 (Disulfide bond)
L-Cystine, synthetically derived
3,3'-dithiobis(2-aminopropanoicacid)
3,3'-Dithiobis(2-aminopropanoic acid)
(-)-3,3-Dithiobis(2-aminopropionic acid)
L(-)-3,3-Dithiobis(2-aminopropanoic acid)
(r-(r*,r*))-3,3'-dithiobis(2-aminopropanoicacid)
3,3'-dithiobis(2-amino-,(r-(r*,r*))-propanoicaci
(2R,2'S)-3,3'-disulfanediylbis(2-ammoniopropanoate)
2-Amino-3-[(2-amino-2-carboxyethyl)dithio]propanoic acid
CAS56-89-3
24645-67-8
EINECS200-296-3
InChIInChI=1/C3H6NO2S3/c5-3(6)2(4-7)1-9-8/h2H,1,4H2,(H,5,6)
InChIKeyLEVWYRKDKASIDU-IMJSIDKUSA-N


Molecular FormulaC6H12N2O4S2
Molarmassa240.3
Täthet1.68
Melting Point>240 °C (dec.) (lit.)
Boling Point468.2±45.0 °C(Predicted)
Specific Rotation(α)-224 º(c=2 in 1M HCl)
Vattenlöslighet0.112 g/L (25 ºC)
SolubilityVery slightly soluble in water; insoluble in ethanol and other organic solvents, easily soluble in dilute acids and alkaline liquids, and easily decomposed in hot lye
UtseendeWhite crystal
FärgVit
Merck14,2782
BRN1728094
pKa1.0, 2.1, 8.02, 8.71(at 25℃)
Lagringstillstånd2–8°C
StabilityStable. Incompatible with strong oxidizing agents.
SensitiveSensitive to light
Refractive Index-222.5 ° (C=1, 1mol/
MDLMFCD00064228
Physical and Chemical PropertiesProperties white hexagonal plate-like crystals or white crystalline powder.

soluble in dilute acid and alkali solution, extremely difficult to dissolve in water, insoluble in ethanol.
UseUsed in medicine, food, cosmetics and other industries

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