[1,1':4',1''-Terphenyl]-2',5'-dione CAS 844-51-9

Purity 97%+In StockPharmaceutical Standards
CAS No.844-51-9
Molecular FormulaC18H12O2
Molecular Weight260.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

[1,1':4',1''-Terphenyl]-2',5'-dione CAS 844-51-9 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including [1,1':4',1''-Terphenyl]-2',5'-dione.

[1,1':4',1''-Terphenyl]-2',5'-dione (CAS 844-51-9), molecular formula C18H12O2 and molecular weight 260.29 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C18H12O2, [1,1':4',1''-Terphenyl]-2',5'-dione contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 260.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 [1,1':4',1''-Terphenyl]-2',5'-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 FormulaC18H12O2
Molecular Weight260.29 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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Why CATO?