Thiamine

Thiamine EP Impurity A Thiamine Impurity A:

Thiamine Sulfate Ester ; 3-[(4-Amino-2-methylpyrimidin-5-yl)methyl]-4-methyl-5-[2-(sulfonatooxy)ethyl] thiazolium ; CAS : 2380-61-2 ; C12H16N4O4S2 ;
Mol. Wt.: 344.41 ;
Thiamine EP Impurity B Thiamine Impurity B:

3-[(4-Aminopyrimidin-5-yl)methyl]-5-(2-hydroxyethyl)-4-methylthiazolium chloride hydrochloride ; CAS : 49614-72-4 ;C11H16Cl2N4OS ; Mol. Wt.: 323.24 ;
Thiamine EP Impurity C Thiamine Impurity C:

3-[(4-Amino-2-methylpyrimidin-5-yl)methyl]-5-(2-chloroethyl)-4-methylthiazolium chloride hydrochloride ; CAS : 7275-24-3 ; C12H17Cl3N4S ; Mol. Wt.: 355.71 ;
Thiamine EP Impurity D Thiamine Impurity D:

Oxo Thiamine ; 3-[(4-Amino-2-methylpyrimidin-5-yl)methyl]-5-(2-hydroxyethyl)-4-methylthiazol-2(3H)-one ; CAS : 490-82-4 ;C12H16N4O2S ; Mol. Wt.: 280.35 ;
Thiamine EP Impurity E Thiamine Impurity E:

 3-[(4-Amino-2-methylpyrimidin-5-yl)methyl]-5-(2-hydroxyethyl)-4-methylthiazol-2(3H)-thione ; CAS : 299-35-4 ; C12H16N4OS2 ; Mol. Wt.: 296.41 ;
Thiamine EP Impurity F Thiamine Impurity F:

 3-[(4-Amino-2-ethylpyrimidin-5-yl)methyl]-5-(2-hydroxyethyl)-4-methylthiazolium bromide hydrobromide ; C13H20Br2N4OS ;Mol. Wt.: 440.2 ;
Thiamine EP Impurity G Thiamine Impurity G:

 5-[2-(Acetyloxy)ethyl]-3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methylthiazolium chloride hydrochloride ; CAS : 1037-29-2 ;C14H20Cl2N4O2S ; Mol. Wt.: 379.31 ;
Thiamine EP Impurity H Thiamine Impurity H:

(3RS)-3-[[[(4-Amino-2-methylpyrimidin-5-yl)methyl]thiocarbamoyl]sulfanyl]-4-oxopentyl acetate ; CAS : 89285-03-0 ; C14H20N4O3S2 ;Mol. Wt.: 356.46 ;