About Us / Patents and Qualifications_Shanghai Petrochemical Chemicals Co., Ltd 5-Nitrouracil 3-Nitrobenzaldehyde 3-Nitrobenzonitrile 3,5-Dinitrobenzoic acid 2,4-Dinitrochlorobenzene 2-Benzoylbenzoic acid Bromodiphenylmethane Bourgenal