L-Methionine CAS#63-68-3
L-Methionine CAS#63-68-3
L-Methionine CAS#63-68-3
L-Methionine CAS#63-68-3

L-Methionine CAS#63-68-3

L-methionine is a sulfur-containing essential L-amino acid that is important in many body functions. Methionine is a dietary indispensable amino acid required for normal growth and development of humans, other mammals, and avian species. In addition to being a substrate for protein synthesis, it is an intermediate in transmethylation reactions, serving as the major methyl group donor. It must be obtained from diet and food sources since it is unable to be biosynthesized in the body. The minimum daily requirement of L-methionine for an adult male is 13 milligrams per kilogram of body weight. This quantity is normally easy to obtain from a complete diet.

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L-Methionine CAS#63-68-3

Product Name: L-Methionine
Synonyms: L-Met-OH;L-Methionine, Animal-Free;L-METHIONINE (13C5,D8,15N);L-METHIONINE (1,2,3,4-13C4;METHYL-13CH3);L-METHIONINE, REAGENT GRADE, >=98% (;L-MethionineUSP, 98.5-101.5% (Titration: anhydrous basis);L(-)-Methionin
CAS: 63-68-3
MF: C5H11NO2S
MW: 149.21
EINECS: 200-562-9
Product Categories: amino;Miscellaneous Compounds;Amino Acids;Amino Acids & Derivatives;Sulfur & Selenium Compounds;fertilizer;Amino Acids;Amino Acid Derivatives;Methionine [Met, M];Amino Acids and Derivatives;Chiral Compound;bc0001;63-68-3
Mol File: 63-68-3.mol
L-Methionine Structure
L-Methionine Chemical Properties
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℃)
optical activity [α]20/D +23.7±0.5°, c = 5% in 5 M HCl
biological source synthetic
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)

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