Sub Group: Research Compounds Catalog Number: 6921 Formula: C16H9NO6 CAS Number: 475-80-9 Molecular Weight: 311.25 Synonyms: 6-Nitro-phenanthro[3,4-d]-1,3-dioxole-5-carboxylic AcidAristolochic Acid II3,4-(Methylenedioxy)-10-nitrophenanthrene-1-carboxylic