Product Description of (±)-Methionine CAS#59-51-8
DL-Methionine appears as white flaky crystals or a crystalline powder. It has a characteristic odor and a slightly sweet taste. Its melting point is 281°C (with decomposition). A 10% aqueous solution has a pH of 5.6–6.1. It is optically inactive and stable against heat and air, though unstable in strong acids, which can cause demethylation. It is soluble in water (3.3 g/100 mL at 25°C) as well as in dilute acid and dilute alkaline solutions; it is very sparingly soluble in ethanol and practically insoluble in diethyl ether.
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Chemical Properties of (±)-Methionine CAS#59-51-8
Product Name: | DL-Methionine |
Synonyms: | DL-Methionine≥ 99% (Titration);(RS)-Methionine;Kochia fruit extract (10:1);DL-Met-OH;DL-METHIONINE (13C5,D8,15N);DL-METHIONINE (METHYL-13C);Kochia seed extract;DL-Methionine Vetec(TM) reagent grade, 98% |
CAS: | 59-51-8 |
MF: | C5H11NO2S |
MW: | 149.21 |
EINECS: | 200-432-1 |
Product Categories: | Amino Acids;Amino Acids;Amino Acid Derivatives;Methionine [Met, M];feed additives;bc0001;59-51-8 |
Mol File: | 59-51-8.mol |
Melting point | 284 °C (dec.)(lit.) |
Boiling point | 306.9±37.0 °C(Predicted) |
alpha | -1~+1°(D/20℃)(c=8,HCl) |
density | 1.34 |
refractive index | 1.5216 (estimate) |
FEMA | 3301 | D,L-METHIONINE |
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 |
biological source | synthetic |
Optical Rotation | [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. |
Major Application | peptide synthesis |
Cosmetics Ingredients Functions | ANTISTATIC |
Cosmetic Ingredient Review (CIR) | DL-Methionine (59-51-8) |
InChI | 1S/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8) |
InChIKey | FFEARJCKVFRZRR-UHFFFAOYSA-N |
SMILES | CSCCC(N)C(O)=O |
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) |
Safety Information of (±)-Methionine CAS#59-51-8
Hazard Codes | Xi |
Risk Statements | 33-36/37/38 |
Safety Statements | 24/25-36-26 |
WGK Germany | 2 |
RTECS | PD0457000 |
F | 10-23 |
TSCA | TSCA listed |
HS Code | 29304090 |
Storage Class | 11 - Combustible Solids |
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Product Application of (±)-Methionine CAS#59-51-8
DL-Methionine is an important nutritional supplement widely used in the feed, food, and pharmaceutical industries. In the feed industry, it serves as an essential amino acid that enhances animal growth performance and feed utilization efficiency. In the food industry, it is used as a food additive to improve nutritional value. In the pharmaceutical sector, it is utilized in the production of medicines and nutritional supplements to meet the human body's requirements for essential amino acids.
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