6-Methyl-7-nitro-1,2-dihydro-3H-pyrrolo[3,4-c]pyridine-3,4(5H)-dione CAS 89159-32-0

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 6-Methyl-7-nitro-1,2-dihydro-3H-pyrrolo[3,4-c]pyridine-3,4(5H)-dione.

6-Methyl-7-nitro-1,2-dihydro-3H-pyrrolo[3,4-c]pyridine-3,4(5H)-dione (CAS 89159-32-0), molecular formula C8H7N3O4 and molecular weight 209.16 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C8H7N3O4, 6-Methyl-7-nitro-1,2-dihydro-3H-pyrrolo[3,4-c]pyridine-3,4(5H)-dione contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 209.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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