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L-CYSTEIC ACID Structure

L-CYSTEIC ACID

Chemical Properties

Melting point 260℃ (dec.)
alpha  [α]D20 +7.5～+9.5° (c=7.4, H2O)
Density  1.775±0.06 g/cm3(Predicted)
refractive index  8 ° (C=5, H2O)
storage temp.  Keep in dark place,Inert atmosphere,Room temperature
solubility  Methanol (Slightly), Water (Slightly)
pka 1.3(at 25℃)
form  Powder or Crystalline Powder
color  White to off-white
optical activity +8.66 (H2O)
Water Solubility  almost transparency
Merck  14,2780
CAS DataBase Reference 498-40-8(CAS DataBase Reference)
FDA UNII M6W2DJ6N5K
EPA Substance Registry System L-Alanine, 3-sulfo- (498-40-8)

Safety

Symbol(GHS) GHS hazard pictograms
Signal wordWarning
Hazard statements H302-H315-H319-H332-H335
Precautionary statements P280-P305+P351+P338-P310
Risk Statements  36/38
Safety Statements  26-36
HS Code  2930909899
NFPA 704:
0
1 0

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