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  • L-Cysteine hydrochloride  52-89-1
Name:L-Cysteine hydrochloride 52-89-1
CAS No:52-89-1

PRODUCT DESCRIPTION


Description

Cysteine (abbreviated as Cys or C) is a semi-essential proteinogenic amino acid with the formula HO2CCH(NH2)CH2SH>. It is encoded by the codons UGU and UGC. The thiol side chain in cysteine often participates in enzymatic reactions, as a nucleophile. The thiol is susceptible to oxidization to give the disulfide derivative cystine, which serves an important structural role in many proteins. When used as a food additive, it has the Enumber E920.

Basic Info

Chemical Name L-Cysteine hydrochloride
Synonyms

(R)-2-Amino-3-mercaptopropanoic acid hydrochloride;L-Cysteine, hydrochloride;L-Cysteine hydrochloride;

CAS No. 52-89-1
Molecular Formula C3H8ClNO2S
Molecular Weight 157.61900
PSA 102.12000
LogP 0.83040

Numbering system

MDL number MFCD00064553

Properties

Appearance & Physical State white solid
Boiling Point 293.9ºC at 760 mmHg
Melting Point 140-142ºC
Flash Point 131.5ºC
Stability Stable, but light, moisture and air sensitive. Incompatible with strong oxidizing agents, some metals.
Storage Condition Store at RT.

Safety Info

RTECS HA2275000
Safety Statements S26-S36
HS Code 2930909090
WGK Germany 2
Risk Statements R36/37/38
Hazard Codes Xi
Hazard Declaration H315; H319; H335
Signal Word Warning
Symbol GHS07
Caution Statement P261; P305 + P351 + P338

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