S-Methyl-L-cysteine
- CAS No.
- 1187-84-4
- Chemical Name:
- S-Methyl-L-cysteine
- Synonyms
- Methylcysteine;H-CYS(ME)-OH;SMLC;SMC;L-Cys(me)-OH;H-L-CYS(ME)-OH;S-Methyl-L-Cys-OH;S-METHYL-CYSTEINE;S-METHYL-L-CYSTEINE;S-MethyI-L-cysteine
- CBNumber:
- CB4154282
- Molecular Formula:
- C4H9NO2S
- Molecular Weight:
- 135.18
- MDL Number:
- MFCD00002612
- MOL File:
- 1187-84-4.mol
- MSDS File:
- SDS
Melting point | ~240 °C (dec.) |
---|---|
Boiling point | 300.3±37.0 °C(Predicted) |
alpha | -29.5 º (c=1,water) |
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) |
pka | pK1:8.97 (25°C) |
form | Solid |
color | White to Off-White |
BRN | 1721675 |
LogP | 0.380 (est) |
CAS DataBase Reference | 1187-84-4(CAS DataBase Reference) |
EWG's Food Scores | 1 |
FDA UNII | A34I1H07YM |
NIST Chemistry Reference | s-Methyl-L-cysteine(1187-84-4) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | ![]() GHS07 |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
Signal word | Warning | |||||||||
Hazard statements | H315-H335-H319-H302 | |||||||||
Precautionary statements | P264-P270-P301+P312-P330-P501-P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P | |||||||||
Hazard Codes | Xn | |||||||||
Risk Statements | 22 | |||||||||
Safety Statements | 22-24/25-36/37/39-26 | |||||||||
WGK Germany | 3 | |||||||||
HS Code | 29309090 | |||||||||
NFPA 704 |
|
S-Methyl-L-cysteine price More Price(32)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich | M6626 | S-Methyl-L-cysteine substrate for methionine sulfoxide reductase A | 1187-84-4 | 5g | $98.3 | 2024-03-01 | Buy |
Sigma-Aldrich | M6626 | S-Methyl-L-cysteine substrate for methionine sulfoxide reductase A | 1187-84-4 | 25g | $160.4 | 2024-03-01 | Buy |
TCI Chemical | M0233 | S-Methyl-L-cysteine >98.0%(T) | 1187-84-4 | 5g | $109 | 2024-03-01 | Buy |
Sigma-Aldrich | M6626 | S-Methyl-L-cysteine substrate for methionine sulfoxide reductase A | 1187-84-4 | 100g | $1180 | 2024-03-01 | Buy |
TRC | M294655 | S-Methyl-L-cysteine | 1187-84-4 | 100g | $600 | 2021-12-16 | Buy |
S-Methyl-L-cysteine Chemical Properties,Uses,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
Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 | info@dakenam.com | China | 16914 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21668 | 55 |
GenicBio Limited | +86-21-37621270 | service@genicbio.com | CHINA | 991 | 58 |
career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29894 | 58 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
Hubei xin bonus chemical co. LTD | 86-13657291602 | linda@hubeijusheng.com | CHINA | 22968 | 58 |
Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | sales@chemdad.com | China | 39916 | 58 |
Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63711 | 58 |
CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49391 | 58 |
SIMAGCHEM CORP | +86-13806087780 | sale@simagchem.com | China | 17367 | 58 |
View Lastest Price from S-Methyl-L-cysteine manufacturers
Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
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2019-07-06 | S-Methyl-L-cysteine
1187-84-4
|
US $1.00-1.00 / kg | 1 mg | 99% | 100KG | Career Henan Chemical Co |
-
- S-Methyl-L-cysteine
1187-84-4
- US $1.00-1.00 / kg
- 99%
- Career Henan Chemical Co
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