COA Center



DL-METHIONINE For Biochemistry

Product Code: 04606


Appearance White to almost white, crystalline powder or small flakes, melt at 270°C
Assay (Potentiometric; on anhydrous basis) 99.0-101.0%
Solubility Sparingly soluble in water, very slightly soluble in alcohol. It dissolves in dilute acids and in dilute solutions of the alkali hydroxides
Identifications To comply BP test
Appearance of solution To comply BP test
Loss on drying (at 105°C; 3 hrs) Max 0.5%
pH (2% solution in water) 5.4 to 6.1
Chlorides Max 0.02%
Sulphates Max 0.02%
Heavy metal (as Pb) Max 0.002%
Sulphated ash Max 0.1%
Related Substances ( by TLC) To comply BP test

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