Synonyms: Thiamine,trihydrogen pyrophosphate (ester), monohydrochloride (8CI); Thiazolium,3-[(4-amino-2-methyl-5-pyrimidinyl)methyl]-4-methyl-5-(4,6,6-trihydroxy-3,5-dioxa-4,6-diphosphahex-1-yl)-,chloride, P,P'-dioxide, monohydrochloride; Cocarboxylase hydrochloride;Cocarboxylase monohydrochloride