S-Methyl-L-cysteine

Product Name: S-Methyl-L-cysteine
CAS No.: 1187-84-4
Chemical Name: S-Methyl-L-cysteine
Synonyms: Methylcysteine;H-CYS(ME)-OH;SMC;SMLC;L-Cys（me）-OH;H-L-CYS(ME)-OH;S-METHYL-CYSTEINE;S-Methyl-L-Cys-OH;S-METHYL-L-CYSTEINE;S-MethyI-L-cysteine
CBNumber: CB4154282
Molecular Formula: C4H9NO2S
Formula Weight: 135.18
MOL File: 1187-84-4.mol

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S-Methyl-L-cysteine Property

Melting point:: ~240 °C (dec.)
alpha: -29.5 º (c=1,water)
Boiling point:: 300.3±37.0 °C(Predicted)
Density: 1.149 (estimate)
refractive index: -30 ° (C=2, H2O)
storage temp.: Keep in dark place,Sealed in dry,Store in freezer, under -20°C
solubility: Aqueous Acid (Slightly, Sonicated), Aqueous Base (Sparingly, Sonicated)
form: Solid
pka: pK1:8.97 (25°C)
color: White to Off-White
BRN: 1721675
LogP: 0.380 (est)
CAS DataBase Reference: 1187-84-4(CAS DataBase Reference)
NIST Chemistry Reference: s-Methyl-L-cysteine(1187-84-4)

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Safety

Hazard Codes: Xn
Risk Statements: 22
Safety Statements: 22-24/25-36/37/39-26
WGK Germany: 3
HS Code: 29309090

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P330Rinse mouth.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: M6626
Product name: S-Methyl-L-cysteine
Purity: substrate for methionine sulfoxide reductase A
Packaging: 5g
Price: $98.3
Updated: 2024/03/01

Sigma-Aldrich

Product number: M6626
Product name: S-Methyl-L-cysteine
Purity: substrate for methionine sulfoxide reductase A
Packaging: 25g
Price: $160.4
Updated: 2024/03/01

TCI Chemical

Product number: M0233
Product name: S-Methyl-L-cysteine
Purity: >98.0%(T)
Packaging: 5g
Price: $109
Updated: 2024/03/01

Sigma-Aldrich

Product number: M6626
Product name: S-Methyl-L-cysteine
Purity: substrate for methionine sulfoxide reductase A
Packaging: 100g
Price: $1180
Updated: 2024/03/01

TRC

Product number: M294655
Product name: S-Methyl-L-cysteine
Packaging: 100g
Price: $600
Updated: 2021/12/16

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S-Methyl-L-cysteine Chemical Properties,Usage,Production

Chemical Properties

white to light beige fine crystalline powder

Uses

S-Methyl-L-cysteine is a substrate in the catalytic antioxidant system mediated by methionine sulfoxide reductase A (MSRA). It has been studied as a theurapeutic for neurodegenerative diseases including Parkinson′s.

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.]

S-Methyl-L-cysteine Preparation Products And Raw materials

Raw materials

Preparation Products

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S-Methyl-L-cysteine Suppliers

Americas 1 Belgium 2 China 140 Europe 1 France 1 Germany 6 India 8 Japan 4 South Korea 1 Switzerland 5 The Netherlands 1 United Kingdom 9 United States 44 USA 1 Global 224

Chengdu Chuangkecheng Biological Technology Co., Ltd.

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Shanghai Hanhong Scientific Co.,Ltd.

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Beijing Isomersyn Technology CO;LTD

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Shandong Xiya Chemical Co., Ltd

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Syntechem Co.,Ltd

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View Lastest Price from S-Methyl-L-cysteine manufacturers

Career Henan Chemical Co

Product: S-Methyl-L-cysteine 1187-84-4
Price: US $1.00/kg
Min. Order: 1 mg
Purity: 99%
Supply Ability: 100KG
Release date: 2018-12-25

1187-84-4, S-Methyl-L-cysteineRelated Search:

L-Cysteine 6-Aminocaproic acid Propionic acid METSULFURON METHYL Glycine ALTRENOGEST Kresoxim-methyl Thiophanate-methyl N-Acetyl-L-cysteine DL-Homocysteine Tris(hydroxymethyl)aminomethane Methyl salicylate Tribenuron methyl Methyl Methyl bromide S-Trityl-L-cysteine S-Carboxymethyl-L-cysteine L-CYSTEINE HCL ANHYDROUS

(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-

Methylcysteine

S-Methyl-L-Cysteine(SMC)

SMC

DL-S-Methyl-cysteine

S-Methyl-L-cysteine, 99+%

S-Methyl-L-Cys-OH

S-METHYL-L-CYSTEINE/ H-CYS(ME)-OH

(2R)-2-Amino-3-methylsulfanylpropanoic acid

METHYL-L-CYSTEINE, S-(RG)

DL-S-Methyl- Cys-OH DL-S-Methyl-cysteine

S-Methyl-L-cysteine, 99+% 10GR

S-Methyl-L-cysteine substrate for Methionine sulfoxide reductase A

SMLC

(2R)-2-ammonio-3-(methylthio)propanoate

S-Methyl-L-cysteine&gt

S-MethyI-L-cysteine

S-Methyl-L-cysteine USP/EP/BP

S-methyl-laevo-cysteine

TIANFUCHEM--1187-84-4--S-Methyl-L-cysteine

L-Cys（me）-OH

1187-84-4

CH3SCH2CHNH2CO2H

C4H9NO2S

Cysteine/Cystine

Peptide Synthesis

Specialty Synthesis

Amino Acid Derivatives

Amino Acids Derivatives

Cysteine [Cys, C]

Amino Acids and Derivatives

Amino Acid Derivatives