Photoresist Chemicals Castor oil, dehydrated, polymer with bisphenol A, p-tert-butylphenol, copals, formaldehyde, glycerol, linseed oil and phthalic anhydride Cas：Emarginatoside B Molecular Formula：Castor oil, dehydrated, polymer with bisphenol A, p-tert-butylphenol, copals, formaldehyde, glycerol, linseed oil and phthalic anhydride