... intermediates 2. in pharmaceutical, chemical, pesticide, spies 3. CAS:1132-21-4 4. C9H10O4 3,5-Dimethoxy benzoic acidCAS:1132-21-4Molecular formula ... .Package: plastic-lined paperboard drum, net weight 25kg per drum. 3,5-Dimethoxy benzoic acid,CAS NO.1132-21-4