Cysteine, N-methyl, L-
H-Cys(Me)-OH
CAS: 1187-84-4
Molecular Formula: C4H9NO2S
Cysteine, N-methyl, L- - Names and Identifiers
Cysteine, N-methyl, L- - Physico-chemical Properties
| Molecular Formula | C4H9NO2S |
| Molar Mass | 135.18 |
| Density | 1.149 (estimate) |
| Melting Point | ~240°C (dec.) |
| Boling Point | 300.3±37.0 °C(Predicted) |
| Specific Rotation(α) | -29.5 º (c=1,water) |
| Flash Point | 100.7°C |
| Solubility | Aqueous Acid (Slightly, Sonicated), Aqueous Base (Sparingly, Sonicated), Water ( |
| Vapor Presure | 0.011mmHg at 25°C |
| Appearance | White (or microstrip yellow crystalline) powder |
| Color | White to Off-White |
| BRN | 1721675 |
| pKa | pK1:8.97 (25°C) |
| Storage Condition | Keep in dark place,Sealed in dry,Store in freezer, under -20°C |
| Refractive Index | -30 ° (C=2, H2O) |
| MDL | MFCD00002612 |
| In vivo study | S-Methyl-L-cysteine (100 mg/kg) results in significant attenuation of plasma glucose, insulin, tumor necrosis factor-alpha, insulin resistance and improved antioxidant enzyme activities. |
Cysteine, N-methyl, L- - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | 22 - Harmful if swallowed |
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 3 |
| HS Code | 29309090 |
Cysteine, N-methyl, L- - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| biological activity | S-Methyl-L-cysteine is a natural product and is a substrate for catalyzing methionine sulfur oxide reductase A (MSRA) in antioxidant system. It has antioxidant, neuroprotective and weight loss effects. |
| use | methionine sulfoxide reductase substrate |
Last Update：2024-04-09 20:52:54
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