4,4,6,8-Tetramethyl-4H-pyrrolo[3,2,1-ij]quinoline-1,2-dione CAS 74442-16-3

Purity 97%+In StockPharmaceutical Standards
CAS No.74442-16-3
Molecular FormulaC15H15NO2
Molecular Weight241.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4,4,6,8-Tetramethyl-4H-pyrrolo[3,2,1-ij]quinoline-1,2-dione CAS 74442-16-3 chemical structure

Description

4,4,6,8-Tetramethyl-4H-pyrrolo[3,2,1-ij]quinoline-1,2-dione (CAS 74442-16-3) is a high-purity analytical reference standard with the molecular formula C15H15NO2 and a molecular weight of 241.29 g/mol.

Structurally, 4,4,6,8-Tetramethyl-4H-pyrrolo[3,2,1-ij]quinoline-1,2-dione (C15H15NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 241.29 g/mol, it falls into the medium-molecular-weight range. 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.

CATO manufactures 4,4,6,8-Tetramethyl-4H-pyrrolo[3,2,1-ij]quinoline-1,2-dione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC15H15NO2
Molecular Weight241.29 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1978
Nitrogen Atoms1

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