Methionine
L-Methionine
- CAS
- 63-68-3
- EC
- 200-562-9
- Sectors
- Animal Nutrition, Nutraceuticals & Supplements, Personal Care & Cosmetics
Methionine (CAS 63-68-3) is an essential sulfur-containing amino acid found in proteins, supplied as a white crystalline powder with a slight odor; it is used in pharmaceuticals, feed additives and nutrition supplements for protein synthesis and detoxification, and in cosmetics to support keratin formation and hair strength.
Typical Properties
| Molecular formula | C5H11NO2S |
|---|---|
| Molecular weight | 149.21 g/mol |
| Appearance | White crystalline powder |
| Form | Solid |
| Color | White |
| Odor | Slight characteristic |
| Melting point | 280-282 °C (decomp) |
| Boiling point | 123-126 °C @ Press: 15 Torr |
| Density | 0.99961 g/cm³ (Solid) @ Temp: 25 °C |
| Water solubility | Soluble |
| pH | 5-7 (10g/l, H2O, 20°C) |
| HS code | 29304010 |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Methionine
Applications
Used in pharmaceuticals, feed additives, and nutrition supplements for protein synthesis and detoxification. In cosmetics, it supports keratin formation and hair strength.
Safety & Risks
Non-toxic and stable; protect from humidity to maintain quality.
Packaging
Delivered in 25 kg PE-lined paper bags or drums. Store cool, dry, and sealed.