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ChemicalBook Product Catalog Biochemical Engineering Amino Acids and Derivatives Cysteine derivatives S-Methyl-L-cysteine

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S-Methyl-L-cysteine

$1.00 1kg

$1.00 1kg

Min. Order1 mg
Purity99%
Cas No1187-84-4
Supply Ability100KG
Update time2019-07-06

career henan chemical co

career henan chemical co

6YR

China

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Chemical Properties

Product Name	S-Methyl-L-cysteine
CAS No	1187-84-4
EC-No
Min. Order	1 mg
Purity	99%
Supply Ability	100KG
Release date	2019/07/06

S-Methyl-L-cysteine Basic information

Product Name:	S-Methyl-L-cysteine
Synonyms:	(R)-2-AMINO-3-(METHYLMERCAPTO)PROPIONIC ACID;S-METHYL-CYSTEINE;S-METHYL-L-CYSTEINE;H-L-CYS(ME)-OH;H-CYS(ME)-OH;Alanine, 3-(methylthio)-, L-;L-CH3SCH2CH(NH2)COOH;L-Cysteine, S-methyl-
CAS:	1187-84-4
MF:	C4H9NO2S
MW:	135.18
EINECS:	214-701-6
Product Categories:	Amino Acids Derivatives;Cysteine [Cys, C];Amino Acids and Derivatives;Amino Acid Derivatives
Mol File:	1187-84-4.mol

S-Methyl-L-cysteine Chemical Properties

Melting point	~240 °C (dec.)
alpha	-29.5 º (c=1,water)
density	1.149 (estimate)
refractive index	-30 ° (C=2, H2O)
storage temp.	−20°C
CAS DataBase Reference	1187-84-4(CAS DataBase Reference)
NIST Chemistry Reference	s-Methyl-L-cysteine(1187-84-4)

Safety Information

Hazard Codes	Xn
Risk Statements	22
Safety Statements	22-24/25-36/37/39-26
WGK Germany	3

MSDS Information

Provider	Language
(R)-2-Amino-3-(methylmercapto)propionic acid	English
SigmaAldrich	English
ACROS	English

S-Methyl-L-cysteine Usage And Synthesis

Chemical Properties	white to light beige fine crystalline powder
Definition	ChEBI: A cysteine derivative that is L-cysteine in which the hydrogen attached to the sulfur is replaced by a methyl group.
Purification Methods	Likely impurities are cysteine and S-methyl-dl-cysteine. Crystallise it from H2O by adding 4volumes of EtOH. It also crystallises from MeOH with m 234-236o(dec), but after sublimation i t has m 267-270o and [] 27D -31.6o (c 1, H2O). [Rinderknecht et al. Helv Chim Acta 41 1, 10 1958, Theodoropoulos Acta Chem Scand 13 383 1959, Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 p 1904 1961, Beilstein 4 IV 3145.]

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