-Methionine

Item

Specification

Appearance

White crystals or crystalline powder

State of solution

95.0% Min

Specific rotation[a]D20º

-22.9°to -24.7°

Chloride(Cl)

0.10% Max

Arsenic

2ppm Max

Heavy Metals (Pb)

10ppm Max

Loss on Drying

0.20% Max

Residue on Ignition

0.20% Max

PH

5.6~6.1

Assay

98.0% to 101.0%