L-CYSTEINE

  • SYNONYMS :
  • (R)-2-Amino-3-mercaptopropionic acid

Article No. 03140 Grade For Biochemistry
Purity 99% CAS No. 52-90-4
Molecular Formula C3H7NO2S Molecular Weight 121.16
H.S. Code 2930.9013 Shelf Life 5 Years
 

 

Safety Information and Hazard Symbols

Exclamation Mark
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H302
 

Packings

00005 5 g Request for price
00025 25 g Request for price
00500 500 g Request for price
 
Revision Date : 15-Jan-2015

Specifications

Appearance Colorless crystalline powder
Assay Min. 99%
Specific rotation +8.0° to +9.0°
UV absorption Max. 0.5
Loss on drying (at 105°C; 3 hrs.) Max. 0.3%
Chloride (Cl) Max. 0.002%
Sulphate (SO4) Max. 0.01%
Heavy metals (as Pb) Max. 0.001%
Ammonium (NH4) Max. 0.01%
Foreign amino acids Max. 0.5%
Other ninhydrin positive substances (as Glycine) Max. 0.1%