2-[(2-Chloro-6-fluorophenyl)methyl]-4-(5-ethyl-1,2,4-oxadiazol-3-yl)-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione CAS 1775444-02-4

Purity 97%+In StockPharmaceutical Standards
CAS No.1775444-02-4
Molecular FormulaC19H18ClFN4O3
Molecular Weight404.82 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-[(2-Chloro-6-fluorophenyl)methyl]-4-(5-ethyl-1,2,4-oxadiazol-3-yl)-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione CAS 1775444-02-4 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 2-[(2-Chloro-6-fluorophenyl)methyl]-4-(5-ethyl-1,2,4-oxadiazol-3-yl)-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione.

CATO supplies 2-[(2-Chloro-6-fluorophenyl)methyl]-4-(5-ethyl-1,2,4-oxadiazol-3-yl)-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (CAS 1775444-02-4), a certified reference material (molecular formula C19H18ClFN4O3, MW 404.82 g/mol) for analytical method development and quality control.

Structurally, 2-[(2-Chloro-6-fluorophenyl)methyl]-4-(5-ethyl-1,2,4-oxadiazol-3-yl)-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (C19H18ClFN4O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 404.82 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

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 FormulaC19H18ClFN4O3
Molecular Weight404.82 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore in a cool place (≤25°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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1994
Halogen ContentF/Cl-containing
Nitrogen Atoms4

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