英文同义词:
Isonicotinic anhydride, 90%, remainder picolinic and nicotinic acid-anhydride;Isonicotinic anhydride, remainder picolinic and nicotinic acid-anhydride;Bis(4-pyridinecarboxylic)anhydride;PYRIDINE-4-CARBOXYLIC ACID ANHYDRIDE;IsonicotinicAnhydride90%;Isonicotinic anhydride, HPLC 90%;4-PYRIDINECARBOXYLIC ACID ANHYDRIDE;ISONICOTINIC ANHYDRIDE