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L-Cysteine Hcl Monohydrate |
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Synonyms |
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L-2-Amino-3-Mercaptopropanoic Acid Hydrochloride |
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CAS No. |
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7048-04-6 |
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Structure |
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Specification |
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Specific rotation[a]D20° +5.5°～+7.0°
State of solution,% 98.0 Min.
(Transmittance)
Chloride(Cl),% 19.89 ~20.29
Ammonium(NH4),% 0.02 Max.
Sulfate(SO4),% 0.02 Max.
Heavy Metals(Pb),ppm 10 Max.
Arsenic(As2O3),ppm 1 Max.
Other amino acids Chromatographically not detectable
Loss on drying,% 8.5 ~ 12.0
Residue on ignition,% 0.10 Max.
Assay,% 98.5～100.5
Iron(Fe),ppm 10 Max. |
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Application |
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Used as healthcare and pharmaceutical intermediates. |
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Remaks |
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