Product Description
L-Methionine is a biologically active sulfur-containing L-amino acid. It occupies an irreplaceable position in organism metabolism, protein synthesis and nutrient transformation, serving as a high-value raw material for healthcare products, pharmaceutical preparations and animal nutrition.
Product Parameters
| Melting point | 284 °C (dec.)(lit.) |
| Alpha | 23.25 º (c=2, 6N HCl) |
| Boiling point | 393.91°C (estimate) |
| Density | 1,34g/cm |
| Bulk density | 550kg/m3 |
| Refractive index | 1.5216 (estimate) |
| Storage temp | 20-25°C |
| Solubility | 1 M HCl: 0.5 M at 20 °C, clear, colorless |
| Pka | 2.13(at 25℃) |
| Form | Solid |
| Color | White |
| Odor | Slight characteristic |
| PH | 5-7 (10g/l, H2O, 20℃) |
| Biological source | Synthetic |
| Optical Rotation | [α]20/D +23.7±0.5°, c = 5% in 5 M HCl |
| Water Solubility | Soluble |
| λmax | λ: 260 nm Amax: 0.40 λ: 280 nm Amax: 0.05 |
| Merck | 14,5975 |
| BRN | 1722294 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| LogP | 0.217 (est) |
| CAS DataBase Reference | 63-68-3(CAS DataBase Reference) |
| NIST Chemistry Reference | L-Methionine(63-68-3) |
| EPA Substance Registry System | L-Methionine (63-68-3) |
Safety Information
| Risk Statements | 33 |
| Safety Statements | 24/25 |
| WGK Germany | 2 |
| RTECS | PD0457000 |
| F | 10-23 |
| TSCA | Yes |
| HS Code | 29304010 |
| Hazardous Substances Data | 63-68-3(Hazardous Substances Data) |
| Toxicity | LD50 oral in rat: 36gm/kg |
Application Scenarios
Pharmaceutical & Health Industry – Widely developed as amino acid medicines and nutritional supplements. It delivers auxiliary conditioning effects on fatty liver, liver cirrhosis and other liver metabolic disorders, protecting hepatic physiological functions.
Animal Feed Industry – Commonly used as a high-efficiency feed fortifier. It improves crude protein utilization rate, accelerates livestock and poultry growth, increases dairy cow milk yield and boosts laying hen egg production, significantly raising breeding economic benefits.
