Photoresist Chemicals 2-Oxepanone, polymer with 1,4-butanediol, 2,3-dibromo-2-butene-1,4-diol, 4,4-diisocyanato-3,3-dimethyl-1,1-biphenyl, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and 4,4-(methanetetrayldinitrilo)bis(3,5- Cas：68958-06-5 Molecular Formula：2-Oxepanone, polymer with 1,4-butanediol, 2,3-dibromo-2-butene-1,4-diol, 4,4-diisocyanato-3,3-dimethyl-1,1-biphenyl, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and 4,4-(methanetetrayldinitrilo)bis(3,5-