A5383412
DL-Methionine , 99% , 59-51-8
Synonym(s):
(±)-2-Amino-4-(methylmercapto)butyric acid;DL -2-Amino-4-(methylthio)butanoic acid;DL -Methionine
CAS NO.：59-51-8
Empirical Formula: C5H11NO2S
Molecular Weight: 149.21
MDL number: MFCD00063097
EINECS: 200-432-1
| Pack Size | Price | Stock | Quantity |
| 100G | RMB31.20 | In Stock |
|
| 500G | RMB95.20 | In Stock |
|
| 2.5KG | RMB383.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 284 °C (dec.)(lit.) |
| alpha | -1～+1°(D/20℃)(c=8,HCl) |
| Boiling point: | 306.9±37.0 °C(Predicted) |
| Density | 1.34 |
| FEMA | 3301 | D,L-METHIONINE |
| refractive index | 1.5216 (estimate) |
| storage temp. | 2-8°C |
| solubility | 1 M HCl: 0.5 M at 20 °C, clear, colorless |
| form | Crystals or Crystalline Powder |
| pka | 2.13(at 25℃) |
| color | White |
| Odor | mild sulfurous acidic |
| Odor Type | acidic |
| optical activity | [α]/D, c = 5 in 5 M HCl (inactive) |
| Water Solubility | 2.9 g/100 mL (20 ºC) |
| Merck | 14,5975 |
| JECFA Number | 1424 |
| BRN | 636185 |
| BCS Class | 1 |
| Stability: | Stable. Incompatible with strong oxidising agents. |
| InChIKey | FFEARJCKVFRZRR-UHFFFAOYSA-N |
| LogP | 0.37 |
| CAS DataBase Reference | 59-51-8(CAS DataBase Reference) |
| NIST Chemistry Reference | Methionine(59-51-8) |
| EPA Substance Registry System | Methionine (59-51-8) |
Description and Uses
Methionine is an α-amino acid with the chemical formula HO2CCH(NH2)CH2CH2SCH3. This essential amino acid is classified as nonpolar. This amino-acid is coded by the initiation codon AUG which indicates mRNA's coding region where translation into protein begins.
DL-Methionine is sometimes given as a supplement to dogs; it helps keep dogs from damaging grass by reducing the pH of the urine.
Methionine is allowed as a supplement to organic poultry feed under the US certified organic program.
Safety
| Hazard Codes | Xi |
| Risk Statements | 33-36/37/38 |
| Safety Statements | 24/25-36-26 |
| WGK Germany | 2 |
| RTECS | PD0457000 |
| F | 10-23 |
| TSCA | Yes |
| HS Code | 29304090 |
