L-Cysteine hydrochloride anhydrous (52-89-1)

Identification
Name:	L-Cysteine hydrochloride anhydrous
Synonyms:	(R)-Cysteine hydrochloride;Cysteine monohydrochloride;3-Mercaptoalanine hydrochloride;Cysteine chlorohydrate;(2R)-2-amino-3-sulfanyl-propanoic acid hydrochloride;Cysteine, L-, monohydrochloride;L-(+ )-Cysteine hydrochloride;L-Cysteine HCl Anhydrous;L-Cysteine HCl Anhy;(R)-Cysteine-hydrochloride;L-(+)-Cysteine hydrochloride;L-2-Amino-3-mercaptopropanoic acid monohydrochloride;H-Cys-OH.HCl;L- Cysteine Hydrochloride Anhydrous;L-Cysteine hydrochloride monohydrate;L-Cysteine HCL anhydrouse;L-Cysteine hydrochloride anhydrous;(R)-2-Amino-3-mercaptopropanoic acid hydrochloride;
CAS:	52-89-1
EINECS:	200-157-7
Molecular Formula:	C3H8ClNO2S
Molecular Weight:	157.61
InChI:	InChI=1/C3H7NO2S.ClH/c4-2(1-7)3(5)6;/h2,7H,1,4H2,(H,5,6);1H/t2-;/m0./s1
Molecular Structure:
Properties
Melting Point:	140-142oC
Flash Point:	131.5 oC
Boiling Point:	293.9 oC at 760 mmHg
Density:	g/cm³
Stability:	Stable, but light, moisture and air sensitive. Incompatible with strong oxidizing agents, some metals.
Alpha:	5.5 o (C=8, 6 N HCL)
Water Solubility:	SOLUBLE
Appearance:	white solid
Specification:	Stability and Reactivity of L-Cysteine hydrochloride (CAS NO.52-89-1). Stability:Stable under normal shipping and handling conditions. Incompatibilities:Strong oxidizing agents, metals. Decomposition:Hydrogen chloride, nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide, nitrogen. First Aid Measures: Ingestion:If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately. Inhalation:Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. Skin:Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Eyes:Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. Handling and Storage: Storage:Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Do not store in metal containers. Store protected from moisture. Store protected from light and air. Handling:Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Use with adequate ventilation.
Report:	Reported in EPA TSCA Inventory.
HS Code:	29309013
Flash Point:	131.5 oC
Storage Temperature:	Store at RT.
Sensitive:	Hygroscopic
Color:	Colorless crystals White crystals
Usage:	A nonessential amino acid in humans. Important in protein crosslinking.
Safety Data
Hazard Symbols	Xi:Irritant

L-Cysteine hydrochloride anhydrous (52-89-1)

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