L-Cysteine hydrochloride anhydrous

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L-Cysteine Hydrochloride Anhydrous (R)-2-Amino-3-mercaptopropionic acid monohydrochloride C3H7NO2S·HCl:157.62 CAS No.52-89-1 Nitrogen: 8.89% …

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L-Cysteine Hydrochloride Anhydrous (R)-2-Amino-3-mercaptopropionic acid monohydrochloride C3H7NO2S·HCl:157.62 CAS No.52-89-1 Nitrogen: 8.89% L-Cysteine Hydrochloride Anhydrous, when dried, contains not less than 98.0 percent and not more than102.0 percent of L-Cysteine Hydrochloride Anhydrous (C3H7NO2S·HCl). Description: White crystals or crystalline powder; strongly acid taste. Very soluble in water. Solubility (H2O, g/100g): about 102(20?C) Identification: Compare the infrared absorption spectrum of the sample with that of the standard by potassium bromide disc method.. Specifications: Item Limit Specific rotation [α] 20D +5.6?to +8.9? State of solution (Transmittance) Clear and colorless Not less than 98.0% Heavy metals (Pb) Not more than 10PPm Arsenic (As2O3) Not more than 1PPm Other amino acids conforms not detection Loss on drying Not more than1.00% Residue on ignition (Sulfated) Not more than 0.10% Assay 98.5 to 101.0% PH 1.5 to 2.0 ☆☆☆ Recommended storage limit and condition: Preserved in tight containers at controlled room temperature (2 year).

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