Photoresist Chemicals TIANFU-CHEM CAS NO.68400-67-9 1,3-Butanediol, polymer with .alpha.-butyl-.omega.-hydroxypolyoxy(methyl-1,2-ethanediyl) and 1,3-diisocyanatomethylbenzene Cas：68400-67-9 Molecular Formula：TIANFU-CHEM CAS NO.68400-67-9 1,3-Butanediol, polymer with .alpha.-butyl-.omega.-hydroxypolyoxy(methyl-1,2-ethanediyl) and 1,3-diisocyanatomethylbenzene