1. L-Methionine 2. L-2-Amino-4-(methythio) butanoic acid 3. Molecular formula: C5H11NO2S 4. CAS No.: 63-68-3

L-Methionine

Chemical name: L-2-Amino-4-(methythio) butanoic acid

Molecular formula: C5H11NO2S

Molecular weight: 149.21

Specification:

L-Methionine
Item	Standard
Assay (on dry basis)	98.5-101.5%
Specific rotation	+21.9° ~+24.1°
Iron (Fe), %≤	0.003
Heavy metal, %≤	0.0015
Arsenic, %≤	0.00015
Loss on drying, %≤	0.3
Residue on drying, %≤	0.1

Application:

L-Hydroxyproline, a hydroxylated form of the amino acid proline, is a major component of collagen, L-Hydroxyproline can be used in the synthesis of mycology medicals (anti-fungals) and chiral ligands (enantioselective ethylation of aldehydes). It is also used as important raw materials in the cosmetic field.

L-Methionine (C5H11NO2S) CAS No.: 63-68-3