L(+)-Cysteine hydrochloride

Supplier: Thermo Scientific
Warning

Synonyms: H-Cys-OH.HCl, (R)-2-Amino-3-mercaptopropanoic acid hydrochloride, L-Cysteine hydrochloride, (R)-(+)-Cysteine hydrochloride

111780050 111781000 111785000
ACRO111780050EA 41.4 GBP
ACRO111780050 ACRO111781000 ACRO111785000
L(+)-Cysteine hydrochloride
L(+)-Cysteine hydrochloride
Formula: HSCH₂CH(NH₂)COOH·HCl
MW: 157,62 g/mol
Melting Pt: 175 °C
Storage Temperature: Ambient
MDL Number: MFCD00064553
CAS Number: 52-89-1
EINECS: 200-157-7
Merck Index: 13,02810

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Specification Test Results

Appearance White to off-white Crystalline powder or crystals
Infrared spectrum Conforms
Titration Iodimetric 98.5 to 101.0 % (on dried substance)
Loss on drying 8.0 % to 12.0 % (1g, vacuum 0.7 kPA, 24 h)
Sulfated ash ≤0.1 %
Specific optical rotation +5.5° to +7.0° (20°C, 589 nm) (c=8, 6 N HCl) (on dried substance)
Sulfate (SO4) ≤300 ppm
Ammonium (NH4) ≤200 ppm
Iron (Fe) ≤20 ppm
Heavy metals (as Pb) ≤10 ppm

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