2,4-Diamino-5-(3,4,5-trimethoxybenzyl)pyrimidine sulfate (2:1) 2,4-Pyrimidinediamine, 5-((3,4-trimethoxyphenyl)methyl)-, sulfate (2:1) 56585-33-2 BW 72U Polytrim Trimethoprim sulfate Trimethoprim sulfate [USAN]