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L-Cystine

L-Cystine / CAS : 56-89-3

Appearance White Powder UN -
HS 29309010 DG Class -
Synonyms (H-Cys-Oh)2; L-Cystine; .β.,.β.'-Diamino-.β.,.β.'-Dicarboxydiethyl Disulfide; Cystin; 1-Cystine
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Properties

Summary

Formula
C6H12N2O4S2
Molecular Mass
240.30000
Exact Mass
240.02400
PSA
177.24000
Logp
0.59220
IUPAC
(2R)-2-amino-3-[[(2R)-2-amino-2-carboxyethyl]disulfanyl]propanoic acid
SMILES
C([C@@H](C(=O)O)N)SSC[C@@H](C(=O)O)N

Attribute classification

Matter Classification
organic
Category
API & Intermediate > Pharmaceutical Raw Materials
API & Intermediate > Biochemicals
Food(Feed) Additives > Food Additive
Cosmetics > Cosmetic Raw Materials

Chemical and Physical Properties

Melting Point
260-261ºC
Density
1.571 g/cm3
Boiling Point
468.2ºC
Flash Point
237ºC
Appearance
White Powder

Export information

HS Code
29309010
Export Rebate
13%
Risk Code
R36/37/38-22
Safety Label
Xi,Xn

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