L-Cysteine methyl ester hydrochloride

CAS NO.：18598-63-5
Empirical Formula: C4H10ClNO2S
Molecular Weight: 171.65
MDL number: MFCD00038985
EINECS: 242-435-0
SAFETY DATA SHEET (SDS)
Update Date: 2026-05-11 16:31:51

What is L-Cysteine methyl ester hydrochloride?

Chemical properties

white crystalline powder

The Uses of L-Cysteine methyl ester hydrochloride

L-Cysteine methyl ester hydrochloride is a biochemical shown to inhibit binding of ethynylestradiol metabolites to protein and nucleic acids. It used in the synthesis of peptides, Preparation of thiazolidine-4-carboxylates with carbonyl compounds.

The Uses of L-Cysteine methyl ester hydrochloride

A mucolytic. An effective drug for the treatment of liver failure. Shown to effectively inhibit the binding of ethynylestradiol metabolites to protein and nucleic acids.

The Uses of L-Cysteine methyl ester hydrochloride

Mucolytic agent

What are the applications of Application

L-Cysteine methyl ester hydrochloride is a biochemical shown to inhibit binding of ethynylestradiol metabolites to protein and nucleic acids

Definition

ChEBI: Mecysteine hydrochloride is an alpha-amino acid ester.

Preparation

L-Cysteine methyl ester hydrochloride is prepared by esterification of L-cysteine hydrochloride monohydrate with methanol in the presence of hydrogen chloride.

Trade name

Acthiol (Joullié, France), Actiol (Lirca, Italy), Visclair (Sinclair, UK), Aslos-C (Nissin, J), Epectan (Seiko, Japan), Moltanine (Tohok.-Tokyo Tanabe, Japan), Radcol (Nippon Universal, Japan), Sekinin (Tokyo Hosei, Japan).

Properties of L-Cysteine methyl ester hydrochloride

Melting point:	142 °C (dec.)(lit.)
alpha	-2.25 º (c=5, 1 N HCl)
Density	1.232 (estimate)
refractive index	-2.5 ° (C=20, MeOH)
FEMA	4781 \| L-CYSTEINE METHYL ESTER HYDROCHLORIDE
storage temp.	Keep in dark place,Sealed in dry,Room Temperature
solubility	DMSO (Slightly), Methanol, Water (Slightly)
form	Crystalline Powder
color	White
optical activity	[α]20/D 1.8°, c = 10 in methanol
Water Solubility	Soluble in water
Merck	13,5809
BRN	3685824
Stability:	Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference	18598-63-5(CAS DataBase Reference)

Safety information for L-Cysteine methyl ester hydrochloride

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H303:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up.