Molecular Formula

C5H11NO2S

Chemical Name

DL-Methionine

Molecular Weight

149.21

Item

Specification

Result

Appearance

White or light grey crystal or crystalline powder

DL-Methionine(%)

≥99.0

99

Specific Optical Rotation

+22.4"-F16+24.8"

+23.7"

pH Value

5.6-6.1

6

Residue On Ignition(%)

≤0.4

0.03

Loss On Drying(%)

≤0.3

0.1

Chloride(NaCL)(%)

〈0.2

〈0.2

Pb (mg/kg)

〈20

〈20

AS(mg/kg)

〈2

〈2

FE(mg/kg)

≤30ppm

7ppm

Conclusion

High Grade Product