DL-Methionine
2-amino-4-(methylthio)butanoic Acid
- CAS
- 59-51-8
- EC
- 200-432-1
- Sectors
- Animal Nutrition, Nutraceuticals & Supplements, Pharma & Healthcare
DL-Methionine (CAS 59-51-8) is a sulfur-containing essential amino acid in the form of a white crystalline powder, used across animal nutrition, nutraceutical supplements and pharmaceutical applications for feed growth and feather development, protein synthesis support and liver health. Density 1.34 g/cm³, melting point 281°C (decomposes), soluble in water (3.4 g/100mL at 25°C), slightly soluble in ethanol; essential amino acid, obtained by chemical synthesis, used in nutrition.
Typical Properties
| Molecular formula | C5H11NO2S |
|---|---|
| Molecular weight | 149.21 g/mol |
| Appearance | White crystalline powder |
| Form | Crystals or Crystalline Powder |
| Color | White |
| Odor | mild sulfurous acidic |
| Melting point | 281 °C (decomp) |
| Density | 1.3 g/cm³ |
| Water solubility | 2.9 g/100 mL (20 °C) |
| HS code | 29304000 |
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.
DL-Methionine
Applications
Used in animal feed for growth and feather development; supplements for protein synthesis; pharmaceuticals for liver health; food fortification for infants; cosmetics for hair; in research for metabolism.
Safety & Risks
Low toxicity, GRAS; high doses may cause nausea or hyperactivity. Irritates eyes/skin; avoid dust. Stable; use PPE, ventilate; monitor for sulfur sensitivity.
Packaging
Packaged in 25kg multi-wall paper bags or 1000kg big bags; store in dry, ventilated warehouses.