Synonyms: 2-Carbethoxy-7-nitroindole7-Nitroindole-2-carboxylic acid ethyl ester Purity Limit: ≥ 98% (HPLC) CAS No.: 6960-46-9 Molecular Formula: C11H10N2O4 Molecular Weight: 234.21 MDL No.: MFCD00216475 Appearance: Yellow to orange powder Storage Temperature: Store at 0-8 °C