Thiamine pyrophosphate154-87-0100 % similar Thiamine hydrochloride67-03-859 % similar 3-[(4-Amino-2-methyl-5-pyrimidinyl)methyl]-5-(2-hydroxyethyl)-4-methylthiazolium70-16-657 % similar Vitamin B159-43-855 % similar Thiamine nitrate532-43-455 % similar Benfotiamine22457-89-234 % similar Toxopyrimidine73-67-633 % similar Amprolium hydrochloride137-88-231 % similar 4-Amino-2-methyl-5-pyrimidinemethanamine95-02-331 % similar 1-(4-Amino-2-methylpyrimidin-5-yl)methyl-3-(2-chloroethyl)-3-nitrosourea hydrochloride55661-38-630 % similar