methyl (E)-4-cyano-5-((5-cyano-2,6-bis((3-methoxypropyl)amino)-4-methylpyridin-3-yl)diazenyl)-3-methylthiophene-2-carboxylate CAS 72968-71-9

Purity 97%+In StockPharmaceutical Standards
CAS No.72968-71-9
Molecular FormulaC23H29N7O4S
Molecular Weight499.59 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

methyl (E)-4-cyano-5-((5-cyano-2,6-bis((3-methoxypropyl)amino)-4-methylpyridin-3-yl)diazenyl)-3-methylthiophene-2-carboxylate CAS 72968-71-9 chemical structure

Description

The occurrence of methyl (E)-4-cyano-5-((5-cyano-2,6-bis((3-methoxypropyl)amino)-4-methylpyridin-3-yl)diazenyl)-3-methylthiophene-2-carboxylate is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

methyl (E)-4-cyano-5-((5-cyano-2,6-bis((3-methoxypropyl)amino)-4-methylpyridin-3-yl)diazenyl)-3-methylthiophene-2-carboxylate (CAS 72968-71-9), molecular formula C23H29N7O4S and molecular weight 499.59 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of methyl (E)-4-cyano-5-((5-cyano-2,6-bis((3-methoxypropyl)amino)-4-methylpyridin-3-yl)diazenyl)-3-methylthiophene-2-carboxylate (C23H29N7O4S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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

Molecular FormulaC23H29N7O4S
Molecular Weight499.59 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1977
Nitrogen Atoms7
Sulfur Atoms1

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