Antioxidant Dietary Supplement

Parameters Results
Name Benfotiamine
Quality Inhouse grade
IUPAC Name S-[2-[(4-amino-2-methylpyrimidin-5-yl)methyl-formylamino]-5-phosphonooxypent-2-en-3-yl] benzenecarbothioate
Molecular Formula C19H23N4O6PS
Molecular Weight 466.4 gm/mol
CAS Number 22457-89-2
Physical Appearance A white to off white powder
Solubility Slightly soluble in water & methanol, very slightly soluble in ethanol, insoluble in ehter and in chloroform
Clarity and Colour of Solution The solution should be clear and colorless to faint yellow solution observed
Identification by HPLC Retention time of principal peak in sample preperation should match with the RT of principal peak in standard preperation in assay
Related substance (By HPLC)
Thiamine Monophosphate
Benzoic Acid
Single Maximum Impurity
Total Impurity

Not more than 0.5%
Not more than 1.0%
Not more than 0.5%
Not more than 0.5%
Not more than 1.5%
Assay By HPLC (on dried basis) 98.0% to 102% w/w