1,1'-(Ethyne-1,2-diylbis(4,1-phenylene))bis(ethan-1-one) CAS 29619-42-9

Purity 97%+In StockPharmaceutical Standards
CAS No.29619-42-9
Molecular FormulaC18H14O2
Molecular Weight262.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,1'-(Ethyne-1,2-diylbis(4,1-phenylene))bis(ethan-1-one) CAS 29619-42-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 262.30 g/mol gives 1,1'-(Ethyne-1,2-diylbis(4,1-phenylene))bis(ethan-1-one) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1,1'-(Ethyne-1,2-diylbis(4,1-phenylene))bis(ethan-1-one) (CAS 29619-42-9), molecular formula C18H14O2 and molecular weight 262.30 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C18H14O2, 1,1'-(Ethyne-1,2-diylbis(4,1-phenylene))bis(ethan-1-one) 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 262.30 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).

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'-(Ethyne-1,2-diylbis(4,1-phenylene))bis(ethan-1-one) 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 FormulaC18H14O2
Molecular Weight262.30 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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1965

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