1,3-Benzenedicarboxylic acid, polymer with 1,4-cyclohexanedimethanol and 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid CAS 56899-77-5

Purity 97%+In StockPharmaceutical Standards
CAS No.56899-77-5
Molecular FormulaC9H4O5
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,3-Benzenedicarboxylic acid, polymer with 1,4-cyclohexanedimethanol and 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid CAS 56899-77-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 502.47 g/mol gives 1,3-Benzenedicarboxylic acid, polymer with 1,4-cyclohexanedimethanol and 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1,3-Benzenedicarboxylic acid, polymer with 1,4-cyclohexanedimethanol and 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid (CAS 56899-77-5) is a high-purity analytical reference standard with the molecular formula C9H4O5C8H6O4C8H16O2 and a molecular weight of 502.47 g/mol.

Structurally, 1,3-Benzenedicarboxylic acid, polymer with 1,4-cyclohexanedimethanol and 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid (C9H4O5C8H6O4C8H16O2) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 502.47 g/mol, it falls into the moderately-high-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).

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.

As a certified reference material (CRM), 1,3-Benzenedicarboxylic acid, polymer with 1,4-cyclohexanedimethanol and 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic 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 FormulaC9H4O5 C8H6O4 C8H16O2
Molecular Weight502.47 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at room temperature, 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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1973

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