9,10-Dihydro-9,10-ethenoanthracene-11,12-dicarboxylic acid CAS 1625-81-6

Purity 97%+In StockPharmaceutical Standards
CAS No.1625-81-6
Molecular FormulaC18H12O4
Molecular Weight292.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

9,10-Dihydro-9,10-ethenoanthracene-11,12-dicarboxylic acid CAS 1625-81-6 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.

9,10-Dihydro-9,10-ethenoanthracene-11,12-dicarboxylic acid (CAS 1625-81-6) is a high-purity analytical reference standard with the molecular formula C18H12O4 and a molecular weight of 292.29 g/mol.

Owing to a flavonoid core, a hydroxyl group, an ether linkage, 9,10-Dihydro-9,10-ethenoanthracene-11,12-dicarboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 292.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

As a certified reference material (CRM), 9,10-Dihydro-9,10-ethenoanthracene-11,12-dicarboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC18H12O4
Molecular Weight292.29 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 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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