L-Cysteine
CAS Number52-90-4
FormulaN/A
Mol. Weight121.16 g/mol
L-Cysteine
What is L-Cysteine?
L-Cysteine is a chemical compound with CAS number 52-90-4. It is used in various industrial and research applications.
Specifications
Linear Formula
HSCH2CH(NH2)CO2H
Molecular Weight
121.16 g/mol
Assay/Purity
≥98.0%
Impurities
≤0.5% ninhidrin positive substances(each)
≤10 ppm heavy metals
≤300 ppm ammonium
Safety Information
GHS07Signal Word
Warning
Hazard Statements
H302
Required PPE
dust mask type N95 (US), Eyeshields, Gloves
Melting Point
240 °C (dec.)(lit.)
Ignition Residue
≤0.1%
Anion Traces
chloride (Cl-): ≤0.04%
sulfate (SO42-): ≤0.03%
Cation Traces
Fe: ≤10 ppm
EC Number
200-158-2
WGK Germany
1