... First grade Salable product Appearancetransparent oily liquid Color(APHA)≤202560Ester % ≥ 99.599.099.0Acidity (as benzene dicarbonic acid)% ≤0.0100.0150 ... , ink, safe glass, cellulose, dye, insecticide, solvent, lubricant and softener. Dibutylphthalate(DBP) 99.5%