2,7-di-tert-butyl-9,9-dimethylxanthene-4,5-dicarboxylic acid CAS 130525-39-2

Purity 97%+In StockPharmaceutical Standards
CAS No.130525-39-2
Molecular FormulaC25H42O5
Molecular Weight422.60 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,7-di-tert-butyl-9,9-dimethylxanthene-4,5-dicarboxylic acid CAS 130525-39-2 chemical structure

Description

2,7-di-tert-butyl-9,9-dimethylxanthene-4,5-dicarboxylic acid (C25H42O5) contains a steroid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

2,7-di-tert-butyl-9,9-dimethylxanthene-4,5-dicarboxylic acid (CAS 130525-39-2), molecular formula C25H42O5 and molecular weight 422.60 g/mol, is a CATO reference standard with documented purity and traceability.

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), 2,7-di-tert-butyl-9,9-dimethylxanthene-4,5-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 FormulaC25H42O5
Molecular Weight422.60 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1994

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Why CATO?