L(+)-Cysteine hydrochloride monohydrate ≥98% (dry basis) USP, Multi-Compendial
Supplier: AVANTOR PERFORMANCE MATERIAL LLC
MOC: Regulated
About this item
Synonyms: (R)-(+)-Cysteine hydrochloride monohydrate, (R)-2-Amino-3-mercaptopropanoic acid hydrochloride hydrate, L-Cysteine HCI Monohydrate, H-Cys-OH.HCl.H2O, Cysteine Hydrochloride, Monohydrate, Cysteine Hydrochloride monohydrate
CAS Number:7048-04-6
:
Formula:HSCH₂CH(NH₂)COOH·HCl·H₂O
MDL Number:MFCD00065606
Molecular Weight:175.64 g/mol
Melting Pt:168…170 °C
Merck Index:13,02810
:Management of Change (MOC) category = R
Storage Temperature:Ambient
EINECS:200-157-7
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Specifications
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Specifications
Specification Test Results
- USP - Assay (C₃H₇NO₂S·HCl) (dried basis):98.5 - 101.5 %
- USP - Identification:Passes Test
- USP - Specific Rotation [Å]²⁵ ^D (+):5.7 - 6.8 Degree
- USP - Loss on Drying:8.0 - 12.0 %
- USP - Residue on Ignition:≤0.1 %
- USP - Sulfate (SO₄):≤0.03 %
- USP - Iron (Fe):≤0.003 %
- USP - Related Compounds - Individual Impurities:≤0.5 %
- USP - Related Compounds - Total Impurities:≤2.0 %
- EP/BP - Assay (C₃H₇NO₂S·HCl) (dried basis):98.5 - 101.0 %
- EP/BP - Identification A:Passes Test
- EP/BP - Identification B:Passes Test
- EP/BP - Identification E:Passes Test
- EP/BP - Appearance of Solution:Passes Test
- EP/BP - Specific Rotation [Å]²º^D (+):5.5 - 7.0 Degree
- EP/BP - Ninhydrin-Positive Substances - Impurity A:≤0.5 %
- EP/BP-Ninhydrin-Positive Substances-Each:≤0.2 %
- EP/BP-Ninhydrin-Positive Substances-Total Impurities:≤1.0 %
- EP/BP - Sulfate (SO₄):≤300 ppm
- EP/BP - Ammonium (NH₄):≤0.02 %
- EP/BP - Iron (Fe):≤20 ppm
- EP/BP - Loss on Drying:8.0 - 12.0 %
- EP/BP - Ash (sulfated):≤0.1 %
Specification Test Results
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