Photoresist Chemicals 2,5-Cyclohexadiene-1,4-dione, 2,5-dichloro-3,6-dihydroxy-, compd. with 3-methylpyridine (1:2), dihydrate Cas：842130-19-2 Molecular Formula：C6H7N.1/2C6H2Cl2O4.H2O