DL-METHIONINE For Biochemistry

DL-METHIONINE For Biochemistry (Confirms to BP) (±)-2-Amino-4-(methylmercapto)butyric acid; DL-2-Amino-4-(methylthio)butanoic acid MSDS DE EN FR KO PT ES TH TR COAs Packings 100 g (00100) 500 g (00500) 1000 g (01000) Print friendly version Article No. 04606 Grade For Biochemistry Purity 99% CAS No. 59-51-8 Molecular Formula C 5 H 1 1 NO 2 S Molecular Weight 149.21 H.S. Code 2930.4000 Shelf Life 60 Months Physical Properties Physical state at 20 °C Solid Colour White granular Melting point/ Freezing point [°C] 280 °C Boiling point [°C] 186 °C Density [g/cm3] 1.34 Solubility in water [% weight] Soluble in water Specifications 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 Revision Date: 18-Mar-2017 Home Lab Chemicals Amino Acids & Derivatives DL-METHIONINE