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=4, H2O): +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: 0.03% Iron: 0.001% Arsenic: 0.0001% Endotoxin: 2EU/mg Storage and Stability: Lyophilized powder may be stored at 4C. Stable for 12 months at 4C.
Molecular Weight:
157.62
CAS Number:
[52-89-1]
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