3,4-Bis(phenylamino)cyclobut-3-ene-1,2-dione CAS 33512-89-9

Purity 97%+In StockPharmaceutical Standards
CAS No.33512-89-9
Molecular FormulaC16H12N2O2
Molecular Weight264.28 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,4-Bis(phenylamino)cyclobut-3-ene-1,2-dione CAS 33512-89-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 264.28 g/mol gives 3,4-Bis(phenylamino)cyclobut-3-ene-1,2-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 3,4-Bis(phenylamino)cyclobut-3-ene-1,2-dione (CAS 33512-89-9), a certified reference material (molecular formula C16H12N2O2, MW 264.28 g/mol) for analytical method development and quality control.

Structurally, 3,4-Bis(phenylamino)cyclobut-3-ene-1,2-dione (C16H12N2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 264.28 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).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO manufactures 3,4-Bis(phenylamino)cyclobut-3-ene-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 FormulaC16H12N2O2
Molecular Weight264.28 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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1966
Nitrogen Atoms2

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