2,4-Dihydro-2,4-bis(oxiranylmethyl)-5-methyl-3H-1,2,4-triazol-3-one 3H-1,2,4-Triazol-3-one, 2,4-dihydro-2,4-bis(oxiranylmethyl)-5-methyl- 86548-95-0 Etma resin