L-Methionine CAS#63-68-3

Essential Amino Acid – L-Methionine is a sulfur-containing essential amino acid vital for normal growth and development in humans, mammals, and birds.
Supports Protein Synthesis – It serves as a key substrate for protein formation in the body.
Methyl Donor Function – Acts as a major methyl group donor in transmethylation reactions.
Crucial for Body Functions – Plays an important role in various physiological and metabolic processes.

Contact Now E-Mail Telephone WhatsApp

Product Details

L-Methionine CAS#63-68-3

L-Methionine is a sulfur-containing essential L-amino acid that plays a vital role in numerous physiological functions. It is an indispensable dietary amino acid necessary for normal growth and development in humans, other mammals, and avian species. Beyond serving as a substrate for protein synthesis, L-Methionine functions as an intermediate in transmethylation reactions, acting as a primary methyl group donor.

L-Methionine CAS#63-68-3

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℃)
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	145975
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	46318
TSCA	Yes
HS Code	29304010
Hazardous Substances Data	63-68-3(Hazardous Substances Data)
Toxicity	LD50 oral in rat: 36gm/kg

L-Methionine CAS#63-68-3

Product Usage

Used in amino acid-based pharmaceuticals and nutritional supplements, L-Methionine is applied in the treatment of fatty liver and cirrhosis. It is also widely utilized as a feed additive to enhance feed quality, improve the utilization of native proteins, and promote animal growth. For example, DL-Methionine can increase egg production in chickens, support weight gain in pigs, and boost milk yield in dairy cows.

L-Methionine CAS#63-68-3