Photoresist Chemicals 17,19-Dinoratis-15-ene-4,13,14-tricarboxylic acid, 16-(1-methylethyl)-, cyclic 13,14-anhydride, (4alpha,8alpha,12alpha,13R,14R)-, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol Cas：68214-18-6 Molecular Formula：17,19-Dinoratis-15-ene-4,13,14-tricarboxylic acid, 16-(1-methylethyl)-, cyclic 13,14-anhydride, (4alpha,8alpha,12alpha,13R,14R)-, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol