L-Cysteine Hydrochloride Anhydrous

L-Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. L-Cysteine is commonly used as a precursor in the food and pharmaceutical industries. L-Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavors. Synonyms: R)-2-Amino-3-mercaptopropanoic Acid Hydrochloride, (R)-Cysteine Hydrochloride, 2-Amino-3-mercaptopropionic Acid Hydrochloride, NSC 8746 Hydrochloride, Thioserine Hydrochloride, beta-Mercaptoalanine Hydrochloride, CAS No: 52-89-1, Molecular Formula: C3H7NO2SHCl, Molecular Weight: 157.62, Purity: >99%, Appearance: White, crystalline powder, Specific Rotation (C=8, 1N HCl): +5.6° to +8.9°, Loss on Drying: <2%, Residue on Ignition: <0.4%, Heavy Metals (Pb): <0.001%, pH: 1.5-2.0, Chloride: 22.3-22.6%, Ammonium: <0.02%, Sulfate: <0.02%, Iron: <0.001%, Arsenic: <0.0001%, Endotoxin: <2EU/mg, Storage and Stability: Lyophilized powder may be stored at 4°C. Stable for 12 months at 4°C.