1-[(2-Hydroxyethoxy)methyl]-3-methyl-6-phenylthiothymine 132885-44-0 2,4(1H,3H)-Pyrimidinedione, 1-[(2-hydroxyethoxy)methyl]-3,5-dimethyl-6-(phenylthio)- 3-Me-HEPT AIDS-002630 AIDS002630 HEPT derivative