Bis(2-nitrophenyl)methane CAS 21540-57-8

Purity 97%+In StockPharmaceutical Standards
CAS No.21540-57-8
Molecular FormulaC13H10N2O4
Molecular Weight258.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Bis(2-nitrophenyl)methane CAS 21540-57-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 258.23 g/mol gives Bis(2-nitrophenyl)methane distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Bis(2-nitrophenyl)methane (CAS 21540-57-8), a certified reference material (molecular formula C13H10N2O4, MW 258.23 g/mol) for analytical method development and quality control.

Structurally, Bis(2-nitrophenyl)methane (C13H10N2O4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 258.23 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 Bis(2-nitrophenyl)methane 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 FormulaC13H10N2O4
Molecular Weight258.23 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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1963
Nitrogen Atoms2

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