3-chloro-4-methyl-2-oxo-2H-chromen-7-yl propan-2-yl methylphosphonate CAS 875577-95-0

Purity 97%+In StockPharmaceutical Standards
CAS No.875577-95-0
Molecular FormulaC14H16ClO5P
Molecular Weight330.70 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-chloro-4-methyl-2-oxo-2H-chromen-7-yl propan-2-yl methylphosphonate CAS 875577-95-0 chemical structure

Description

The molecular framework of 3-chloro-4-methyl-2-oxo-2H-chromen-7-yl propan-2-yl methylphosphonate (C14H16ClO5P) is characterized by a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

3-chloro-4-methyl-2-oxo-2H-chromen-7-yl propan-2-yl methylphosphonate (CAS 875577-95-0) is a high-purity analytical reference standard with the molecular formula C14H16ClO5P and a molecular weight of 330.70 g/mol.

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), 3-chloro-4-methyl-2-oxo-2H-chromen-7-yl propan-2-yl methylphosphonate 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 FormulaC14H16ClO5P
Molecular Weight330.70 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)6.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentCl-containing

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