286425-35-2 Benzophenone-|A-13C-3,3 inverted exclamation marka,4,4 inverted exclamation marka-tetracarboxylic dianhydride CAS 286425-35-2

Purity 97%+In StockPharmaceutical Standards
CAS No.286425-35-2
Molecular FormulaC16[13C]H18O7
Molecular Weight335.31 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

286425-35-2 Benzophenone-|A-13C-3,3 inverted exclamation marka,4,4 inverted exclamation marka-tetracarboxylic dianhydride CAS 286425-35-2 chemical structure

Description

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.

286425-35-2 Benzophenone-|A-13C-3,3 inverted exclamation marka,4,4 inverted exclamation marka-tetracarboxylic dianhydride (CAS 286425-35-2) is a high-purity analytical reference standard with the molecular formula C16[13C]H18O7 and a molecular weight of 335.31 g/mol.

Based on its molecular formula C16[13C]H18O7, 286425-35-2 Benzophenone-|A-13C-3,3 inverted exclamation marka,4,4 inverted exclamation marka-tetracarboxylic dianhydride contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 335.31 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).

CATO manufactures 286425-35-2 Benzophenone-|A-13C-3,3 inverted exclamation marka,4,4 inverted exclamation marka-tetracarboxylic dianhydride 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 FormulaC16[13C]H18O7
Molecular Weight335.31 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 methanol, acetonitrile, DMSO, water (slightly soluble)
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.)2025

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