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DL-Cysteine Structure

DL-Cysteine

Chemical Properties

Melting point 225 °C (dec.) (lit.)
Boiling point 293.9±35.0 °C(Predicted)
Density  1.197 (estimate)
refractive index  1.5130 (estimate)
storage temp.  Keep in dark place,Inert atmosphere,Room temperature
solubility  Aqueous Acid (Sparingly), DMSO (Sightly), Water (Slightly)
form  Powder
pka 2.07±0.10(Predicted)
color  White to off-white
Water Solubility  Soluble in water (partly), 1 N HCl (25 mg/ml), ethanol, and acetic acid. Insoluble in acetone.
BRN  1721406
Stability Stable. Incompatible with strong oxidizing agents,
LogP 0.230 (est)
CAS DataBase Reference 3374-22-9(CAS DataBase Reference)
FDA UNII 5CM45Q5YAF
NIST Chemistry Reference DL-Cysteine(3374-22-9)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H302+H332-H314-H335
Precautionary statements P260-P280-P301+P312-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes  Xn,Xi,C
Risk Statements  20/21/22-36/37/38-22-35
Safety Statements  26-36-37/39-45-36/37/39
RIDADR  UN 2923 6.1(8) / PGIII
WGK Germany  3
RTECS  HA1595000
8-10-23
HS Code  29309013
NFPA 704:
0
1 0

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DL-Cysteine Chemical Properties,Usage,Production

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