DL-METHIONINE
DL-METHIONINE For Biochemistry
(Confirms to BP)
Short Name: DL-METHIONINE
Synonym: (±)-2-Amino-4-(methylmercapto)butyric acid; DL-2-Amino-4-(methylthio)butanoic acid
Basic Details
Article No.
LG2995
Grade
For Biochemistry
Purity
99%
CAS No.
59-51-8
HS Code
2930.4000
Shelf Life
60 Months
Packings Avialable
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
Chemical 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
Safety Information & Hazard Symbols