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L-Cysteine 99% For Biochemistry | 00923 Pallav Chemicals | MSDs COA

Home > Pallav Chemicals > Amino Acids & Derivatives > L-Cysteine 99% For Biochemistry

L-Cysteine 99% For Biochemistry
(R)-2-Amino-3-mercaptopropionic acid

Product Code.
 00923
Grade
 For Biochemistry
Purity
 99%
CAS No.
 52-90-4
Molecular Formula
 C3H7NO2S
Molecular Weight
 121.16
H.S.Code
 2930.90400
Shelf Life
 60 Months
COAs

Physical Properties

Physical state at 20 °C
Solid
 Colour
Colorless crystalline
 Melting point/ Freezing point [°C]
220 °C
Solubility in water [% weight]
Appreciable (> 10%)

Packaging

Specification

Appearance
Colorless crystalline powder
Assay
Min. 99.0%
Specific optical rotation ([?]20/D)
+8.0° to +9.0°
UV absorbance
Max. 0.5
Loss on dryig (at 105°C; 4 hrs)
Max. 0.3%
Chloride (Cl)
Max. 0.002%
Sulphate (SO4)
Max. 0.01%
Heavy metal (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%

Safety Information and Hazard Symbols

Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H302