[8,8'-Bi-4H-1-benzopyran]-4,4'-dione,5,5',7,7'-tetrahydroxy-2,2'-bis(4-methoxyphenyl)- CAS 74336-91-7

Purity 97%+In StockPharmaceutical Standards
CAS No.74336-91-7
Molecular FormulaC32H22O10
Molecular Weight566.51 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

[8,8'-Bi-4H-1-benzopyran]-4,4'-dione,5,5',7,7'-tetrahydroxy-2,2'-bis(4-methoxyphenyl)- CAS 74336-91-7 chemical structure

Description

The occurrence of [8,8'-Bi-4H-1-benzopyran]-4,4'-dione,5,5',7,7'-tetrahydroxy-2,2'-bis(4-methoxyphenyl)- is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

[8,8'-Bi-4H-1-benzopyran]-4,4'-dione,5,5',7,7'-tetrahydroxy-2,2'-bis(4-methoxyphenyl)- (CAS 74336-91-7) is a high-purity analytical reference standard with the molecular formula C32H22O10 and a molecular weight of 566.51 g/mol.

The molecular framework of [8,8'-Bi-4H-1-benzopyran]-4,4'-dione,5,5',7,7'-tetrahydroxy-2,2'-bis(4-methoxyphenyl)- (C32H22O10) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), [8,8'-Bi-4H-1-benzopyran]-4,4'-dione,5,5',7,7'-tetrahydroxy-2,2'-bis(4-methoxyphenyl)- 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 FormulaC32H22O10
Molecular Weight566.51 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)22.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1978

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