L(+)-Cysteine hydrochloride monohydrate 98.5-101.5% (dry basis)

Supplier: Thermo Scientific
Warning

J14035.A1 J14035.22 J14035.14 J14035.A7
J14035.A1EA 317 EUR
J14035.A1 J14035.22 J14035.14 J14035.A7
L(+)-Cysteine hydrochloride monohydrate 98.5-101.5% (dry basis)
L(+)-Cysteine hydrochloride monohydrate
Formula: HSCH₂CH(NH₂)COOH·HCl·H₂O
Melting Pt: ∼175 °C (dec.)
Storage Temperature: Ambient
MDL Number: MFCD00065606
CAS Number: 7048-04-6
EINECS: 200-157-7
Merck Index: 14,02781
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Specification Test Results

Form White crystalline powder
Assay (unspecified) 98.5 to 101.5% (dry basis)
Identification (FTIR) Conforms
Residual halide: Chlorine (Cl) 19.8 - 20.8%
Residue on ignition ≤ 0.1%
Impurity content: Sulfate (SO4) ≤ 0.03%
Loss on Drying 8.0 to 12.0%
Optical Rotation +5.7° to 6.8° (c=8 in in 6N HCl, dry basis)
Thin Layer Chromatography Homogeneous
Trace Metal: Arsenic (As) ≤ 1.5 ppm
Trace Metal: Heavy Metals (Pb) ≤ 10 ppm
Trace Metal: Iron (Fe) ≤ 10 ppm

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