498-40-8

Name L-CYSTEIC ACID
CAS 498-40-8
EINECS(EC#) 207-861-3
Molecular Formula C3H7NO5S
MDL Number MFCD00007524
Molecular Weight 169.16
MOL File 498-40-8.mol
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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)
form  Powder or Crystalline Powder
pka 1.3(at 25℃)
color  White to off-white
Optical Rotation +8.66 (H2O)
Water Solubility  almost transparency
Merck  2780
Cosmetics Ingredients Functions SKIN CONDITIONING
CAS DataBase Reference 498-40-8(CAS DataBase Reference)
EPA Substance Registry System L-Alanine, 3-sulfo- (498-40-8)

Safety Data

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H332-H335
Precautionary statements  P280-P305+P351+P338-P310
Risk Statements 
R36/38:Irritating to eyes and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
HS Code  2930909899

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