Chemical Name:DL-MethionineCAS No.:59-51-8Assay: ≥98.5%Appearance: White crystalline solid
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DL-Methionine Usage： As feed nutrition enhancer；Used as a biochemical reagent. DL-Methionine Packaging and Shipping： 25KG/drum or according to buyer's requirements. DL-Methionine Storage: Stored in a dry and ventilated warehouse; keep away from sunshine; avoid fire; avoid moisture.
| Name | DL-Methionine |
| Synonyms | Neston Metione Urimeth Pedameth Petameth Thiomedon H-DL-Met-OH DL-Methionine DL-Methoionine (RS)-2-Amino-3-methylthiobutansαure DL-2-Amino-4-(methylthio)butyric acid (R,S)-2-Amino-4-methylsulfanyl-butyricacid |
| CAS | 59-51-8 |
| EINECS | 200-432-1 |
| InChI | InChI=1/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8) |
| InChIKey | FFEARJCKVFRZRR-UHFFFAOYSA-N |
| Molecular Formula | C5H11NO2S |
| Molar Mass | 149.21 |
| Density | 1.34 |
| Melting Point | 284°C (dec.)(lit.) |
| Boling Point | 306.9±37.0 °C(Predicted) |
| Specific Rotation(α) | -1～+1°(D/20℃)(c=8,HCl) |
| JECFA Number | 1424 |
| Water Solubility | 2.9 g/100 mL (20 ºC) |
| Solubility | Soluble in water, dilute acid and dilute alkali, slightly soluble in 95% alcohol, insoluble in ether |
| Appearance | Crystalline powder |
| Color | White |
| Merck | 14,5975 |
| BRN | 636185 |
| pKa | 2.13(at 25℃) |
| Storage Condition | 2-8°C |
| Stability | Stable. Incompatible with strong oxidising agents. |
| Sensitive | Sensitive to light |
| Refractive Index | 1.5216 (estimate) |
| MDL | MFCD00063096 |
| Physical and Chemical Properties | White flaky crystal or crystalline powder. Special odor. The taste was slightly sweet. Melting point 281 degrees (decomposition). 10% pH of the aqueous solution 5.6-6.1. No optical rotation. Stable to heat and air. Unstable to strong acids, can lead to demethylation. Soluble in water (3.3g/100ml,25 degrees), dilute acid and dilute solution. Extremely insoluble in ethanol, almost insoluble in ether |
| Use | Used as a Biochemical reagent |
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