5-(4-Fluorophenyl)-2,4-dihydroxy-5,11-dihydro-6H-indeno[2',1':5,6]pyrido[2,3-d]pyrimidin-6-one CAS 433693-72-2

Purity 97%+In StockPharmaceutical Standards
CAS No.433693-72-2
Molecular FormulaC20H12FN3O3
Molecular Weight361.33 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-(4-Fluorophenyl)-2,4-dihydroxy-5,11-dihydro-6H-indeno[2',1':5,6]pyrido[2,3-d]pyrimidin-6-one CAS 433693-72-2 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-(4-Fluorophenyl)-2,4-dihydroxy-5,11-dihydro-6H-indeno[2',1':5,6]pyrido[2,3-d]pyrimidin-6-one.

5-(4-Fluorophenyl)-2,4-dihydroxy-5,11-dihydro-6H-indeno[2',1':5,6]pyrido[2,3-d]pyrimidin-6-one (CAS 433693-72-2) is a high-purity analytical reference standard with the molecular formula C20H12FN3O3 and a molecular weight of 361.33 g/mol.

Based on its molecular formula C20H12FN3O3, 5-(4-Fluorophenyl)-2,4-dihydroxy-5,11-dihydro-6H-indeno[2',1':5,6]pyrido[2,3-d]pyrimidin-6-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 361.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC20H12FN3O3
Molecular Weight361.33 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
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)16.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentF-containing
Nitrogen Atoms3

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