921-01-7

Name D-Cysteine
CAS 921-01-7
EINECS(EC#) 213-062-0
Molecular Formula C3H7NO2S
MDL Number MFCD00066461
Molecular Weight 121.16
MOL File 921-01-7.mol
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Chemical Properties

Appearance White crystalline powder
Melting point  ~230 °C (dec.)
Boiling point  293.9±35.0 °C(Predicted)
density  1.334±0.06 g/cm3(Predicted)
storage temp.  −20°C
solubility  Aqueous Acid (Slightly), Water (Slightly)
form  Crystalline Powder
pka 2.07±0.10(Predicted)
color  White
Stability: Stable. Incompatible with strong oxidizing agents.
Optical Rotation [α]20/D 7.6±1.0°, c = 5% in 5 M HCl
Water Solubility  Soluble in water (partly).
Sensitive  Air Sensitive
BRN  1721407
Major Application peptide synthesis
InChI 1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m1/s1
InChIKey XUJNEKJLAYXESH-UWTATZPHSA-N
SMILES N[C@H](CS)C(O)=O
LogP 0.230 (est)
CAS DataBase Reference 921-01-7(CAS DataBase Reference)
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Safety Data

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P264-P270-P301+P312a-P330-P501a
Hazard Codes  Xi,Xn
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S37/39:Wear suitable gloves and eye/face protection .
WGK Germany  3
F  10-23
HS Code  29309090
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral

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