L-Cystine CAS NO.56-89-3

L-Cystine Chemical Properties
Melting point     >240 °C (dec.) (lit.)
alpha     -224 º(c=2 in 1M HCl)
Boiling point     468.2±45.0 °C(Predicted)
density     1.68
refractive index     -222.5 ° (C=1, 1mol/L HCl)
storage temp.     Store at RT.
solubility     1 M HCl: 100 mg/mL
form     Powder/Solid
pka    1.0, 2.1, 8.02, 8.71(at 25℃)
color     White
optical activity    [α]20/D 219±5°, c = 1% in 1 M HCl
Water Solubility     0.112 g/L (25 ºC)
Merck     14,2782
BRN     1728094
Stability:    Stable. Incompatible with strong oxidizing agents.
InChIKey    LEVWYRKDKASIDU-IMJSIDKUSA-N
CAS DataBase Reference    56-89-3(CAS DataBase Reference)
NIST Chemistry Reference    L-Cystine(56-89-3)
EPA Substance Registry System    L-Cystine (56-89-3)    

L-Cystine Basic information
Description References
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
Mol File:    56-89-3.mol

Safety Information
Hazard Codes     Xi,Xn
Risk Statements     36/37/38-22
Safety Statements     26-36-24/25
RIDADR     2811
WGK Germany     3
RTECS     HA2690000
Hazard Note     Irritant
TSCA     Yes
PackingGroup     III
HS Code     29309014