ChemicalBook >> CAS DataBase List >>S-Methyl-L-cysteine
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
Last updated:2023-05-25 18:01:08
| 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
Global( 218)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 | info@dakenam.com | China | 15928 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21691 | 55 |
| GenicBio Limited | +86-21-37621270 | service@genicbio.com | CHINA | 991 | 58 |
| career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29914 | 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 | +86-023-61398051 +8613650506873 | 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 | 47465 | 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 | |
|---|---|---|---|---|---|---|---|---|
 |
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
1187-84-4(S-Methyl-L-cysteine)Related Search:
1of4
(R)-2-AMINO-3-(METHYLMERCAPTO)PROPIONIC ACID
S-METHYL-CYSTEINE
S-METHYL-L-CYSTEINE
H-L-CYS(ME)-OH
Alanine, 3-(methylthio)-, L-
L-CH3SCH2CH(NH2)COOH
L-Cysteine, S-methyl-
S-Methyl-L-Cysteine(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>
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
H-CYS(ME)-OH
Methylcysteine
SMC
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