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

Supplier: Thermo Fisher Scientific

Irritant Warning

Warning

Synonyms: (R)-2-Amino-3-mercaptopropanoic acid hydrochloride hydrate , (R)-(+)-Cysteine hydrochloride monohydrate , L-Cysteine HCI Monohydrate , Cysteine Hydrochloride monohydrate , H-Cys-OH.HCl.H2O , Cysteine Hydrochloride, Monohydrate

J14035-A7 J14035-14 J14035-A1 J14035-22

101171-578EA 1712.22 USD

101171-578 101174-990 101174-992 103728-078

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

L(+)-Cysteine hydrochloride monohydrate

Formula: HSCH₂CH(NH₂)COOH·HCl·H₂O
MW: 175.64 g/mol
Melting Pt: ∼ 175 °C (dec.)
Storage Temperature: Ambient

MDL Number: MFCD00065606
CAS Number: 7048-04-6
EINECS: 200-157-7
Merck Index: 14,2781

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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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