- S-Methyl-L-cysteine
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- $2.00
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2026-08-25
- CAS:1187-84-4
- Min. Order: 1kg
- Purity: 99%
- Supply Ability: 100kg
- S-Methyl-L-cysteine
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- $1.00
-
2019-07-06
- CAS:1187-84-4
- Min. Order: 1 mg
- Purity: 99%
- Supply Ability: 100KG
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| | S-Methyl-L-cysteine Basic information |
| | S-Methyl-L-cysteine Chemical Properties |
| 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 | | Major Application | peptide synthesis | | InChI | InChI=1S/C4H9NO2S/c1-8-2-3(5)4(6)7/h3H,2,5H2,1H3,(H,6,7)/t3-/m0/s1 | | InChIKey | IDIDJDIHTAOVLG-VKHMYHEASA-N | | SMILES | C(O)(=O)[C@H](CSC)N | | LogP | 0.380 (est) | | CAS DataBase Reference | 1187-84-4(CAS DataBase Reference) | | NIST Chemistry Reference | s-Methyl-L-cysteine(1187-84-4) |
| Hazard Codes | Xn | | Risk Statements | 22 | | Safety Statements | 22-24/25-36/37/39-26 | | WGK Germany | 3 | | HS Code | 29309090 | | Storage Class | 11 - Combustible Solids |
| | S-Methyl-L-cysteine Usage And Synthesis |
| 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. | | Biological Activity | S-Methyl-L-cysteine (SMLC) is a substrate in the catalytic antioxidant system mediated by methionine sulfoxide reductase A (MSRA). SMLC is naturally present in garlic, cabbage, and turnips and has been studied as a theurapeutic for neurodegenerative diseases including Parkinsonμs.
When used as a dietary supplement in the Drosphilia model of PD, SMLC increases the efficacy of the MRSA catalytic antioxidant system by providing additional substrate available leading to increased resistance to oxidative stress. | | 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 |
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