Mefenamic Acid

Nonsteroidal anti-inflammatory drug

Parameters Results
Name Mefenamic Acid
Quality IP/BP/EP/USP
IUPAC Name 2-(2,3-dimethylanilino)benzoic acid
Molecular Formula C15H15NO2
Molecular Weight 241.28 gm/mol
CAS Number 61-68-7
Physical Appearance White or almost white microcrystalline powder
Solubility Practically insoluble in water, slightly soluble in ethanol (96%) and in methylen chloride. It dissolves in dilute solutions of alkali hydroxides
Identification by IR Absorption The infrared absorption spectrum of the sample in potassium bromide dispersion is concord with similarly recorded spectrum of Mefenamic Acid WS or with the reference spectrum of Mefenamic Acid
Related Substances (By HPLC)
Impurity C
Impurity D
Impurity A
Unspecified Impurity
Total Impurity

Not more than 0.1%
Not more than 0.1%
Not more than 100 ppm
Not more than 0.1%
Not more than 0.2%
Copper Not moer than 10 ppm
Loss on drying Not more than 0.5% w/w
Sulphated Ash Not more than 0.1% w/w
Assay (on dried basis) 99% to 101%