119-67-5 2-Carboxybenzaldehyde 2-Formylbenzoic acid 4-10-00-02748 (Beilstein Handbook Reference) BRN 0742381 Benzoic acid, 2-formyl- EINECS 204-342-3 NSC 5045 PHTHALALDEHYDIC ACID o-Carboxybenzaldehyde o-Formylbenzoic acid