L-Cysteine hydrochloride anhydrous, (RT) (250g)

SKU:
30120-250G
$490.00

Description

L-Cysteine hydrochloride

anhydrous, ≥99.0% (RT)

 

  • CAS Number 52-89-1

  • Linear Formula HSCH2CH(NH2)COOH · HCl

  • Molecular Weight 157.62

  •  Beilstein Registry Number 3560277

  •  EC Number 200-157-7

  •  MDL number MFCD00064553

Properties

assay   ≥99.0% (RT)
optical activity   [α]20/D +6.4±0.3°, c = 5% in 5 M HCl
impurities   ≤0.5% foreign amino acids
ign. residue   ≤0.1% (as SO4)
loss   ≤1.0% loss on drying
solubility   H2O: 1 g/10 mL, clear, colorless
anion traces   sulfate (SO42-): ≤100 mg/kg
cation traces   Ca: ≤10 mg/kg
 - Cd: ≤5 mg/kg
 - Co: ≤5 mg/kg
-  Cr: ≤5 mg/kg
-  Cu: ≤5 mg/kg
-  Fe: ≤5 mg/kg
-  K: ≤50 mg/kg
-  Mg: ≤5 mg/kg
-  Mn: ≤5 mg/kg
-  NH4+: ≤500 mg/kg
-  Na: ≤50 mg/kg
-  Ni: ≤5 mg/kg
-  Pb: ≤5 mg/kg
-  Zn: ≤5 mg/kg