1H-Isochromene-1,3,4-trione 4-[N-(3-nitrophenyl)hydrazone] CAS 303985-86-6

Purity 97%+In StockPharmaceutical Standards
CAS No.303985-86-6
Molecular FormulaC15H9N3O5
Molecular Weight311.25 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1H-Isochromene-1,3,4-trione 4-[N-(3-nitrophenyl)hydrazone] CAS 303985-86-6 chemical structure

Description

The occurrence of 1H-Isochromene-1,3,4-trione 4-[N-(3-nitrophenyl)hydrazone] is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

1H-Isochromene-1,3,4-trione 4-[N-(3-nitrophenyl)hydrazone] (CAS 303985-86-6), molecular formula C15H9N3O5 and molecular weight 311.25 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 1H-Isochromene-1,3,4-trione 4-[N-(3-nitrophenyl)hydrazone] (C15H9N3O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 311.25 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 1H-Isochromene-1,3,4-trione 4-[N-(3-nitrophenyl)hydrazone] 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 FormulaC15H9N3O5
Molecular Weight311.25 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°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.)2025
Nitrogen Atoms3

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