Benfotiamine22457-89-2100 % similar Thiamine disulfide67-16-355 % similar Sulbutiamine3286-46-255 % similar Prosultiamine59-58-550 % similar Fursultiamine804-30-849 % similar Thiamine pyrophosphate154-87-034 % similar Toxopyrimidine73-67-631 % similar