(2R,3S,4S)-2-[3,4-Bis(phenylmethoxy)phenyl]-3,4-dihydro-3,5,7-tris(phenylmethoxy)-2H-1-benzopyran-4-ol CAS 574749-29-4

Purity 97%+In StockPharmaceutical Standards
CAS No.574749-29-4
Molecular FormulaC50H44O7
Molecular Weight756.88 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2R,3S,4S)-2-[3,4-Bis(phenylmethoxy)phenyl]-3,4-dihydro-3,5,7-tris(phenylmethoxy)-2H-1-benzopyran-4-ol CAS 574749-29-4 chemical structure

Description

As a certified reference material (CRM), (2R,3S,4S)-2-[3,4-Bis(phenylmethoxy)phenyl]-3,4-dihydro-3,5,7-tris(phenylmethoxy)-2H-1-benzopyran-4-ol 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.

(2R,3S,4S)-2-[3,4-Bis(phenylmethoxy)phenyl]-3,4-dihydro-3,5,7-tris(phenylmethoxy)-2H-1-benzopyran-4-ol (CAS 574749-29-4), molecular formula C50H44O7 and molecular weight 756.88 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, (2R,3S,4S)-2-[3,4-Bis(phenylmethoxy)phenyl]-3,4-dihydro-3,5,7-tris(phenylmethoxy)-2H-1-benzopyran-4-ol (C50H44O7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 29.0, corresponding to approximately 29 ring(s) or double-bond equivalent(s). With a molecular weight of 756.88 g/mol, it falls into the high-molecular-weight range. 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.

Physical & Chemical Properties

Molecular FormulaC50H44O7
Molecular Weight756.88 g/mol
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)29.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1984

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