L(+)-Cysteine hydrochloride monohydrate 98.5-101.0% for biochemistry
Supplier: VWR Chemicals
23257.183EA
90.1
EUR
23257.183
L(+)-Cysteine hydrochloride monohydrate 98.5-101.0% for biochemistry
L(+)-Cysteine hydrochloride monohydrate
Formula:
HSCH₂CH(NH₂)COOH·HCl·H₂O MW: 175,64 g/mol Melting Pt: 168…170 °C |
MDL Number:
MFCD00065606 CAS Number: 7048-04-6 Merck Index: 13,02810 |
Specification Test Results
Assay (on anhydrous substance) | 98.5 - 101.0 % |
Identification | Passes test |
Spec.opt.rot.(80 g/l;HCl 250 g/l; dried) | 5.5 - 7.0 ° |
Heavy metals (as Pb) | ≤ 10 ppm |
Loss on drying (Vacuum<0.7 kPa, 24 h) | 8.0 - 12.0 % |
SO₄ (Sulphate) | ≤ 300 ppm |
Ninhydrin-positive substances (LC): | |
Ammonium (570 nm) | ≤ 0.02 % |
Any impurity | ≤ 0.2 % |
Impurity A (570 nm) | ≤ 0.5 % |
Total impurities | ≤ 1.0 % |
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