3A-(4-methoxyphenyl)-2,3,3a,4-tetrahydropyrrolo[1,2-a]quinazolin-5(1H)-one CAS 23380-89-4

Purity 97%+In StockPharmaceutical Standards
CAS No.23380-89-4
Molecular FormulaC18H18N2O2
Molecular Weight294.35 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3A-(4-methoxyphenyl)-2,3,3a,4-tetrahydropyrrolo[1,2-a]quinazolin-5(1H)-one CAS 23380-89-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 294.35 g/mol gives 3A-(4-methoxyphenyl)-2,3,3a,4-tetrahydropyrrolo[1,2-a]quinazolin-5(1H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 3A-(4-methoxyphenyl)-2,3,3a,4-tetrahydropyrrolo[1,2-a]quinazolin-5(1H)-one (CAS 23380-89-4), a certified reference material (molecular formula C18H18N2O2, MW 294.35 g/mol) for analytical method development and quality control.

Structurally, 3A-(4-methoxyphenyl)-2,3,3a,4-tetrahydropyrrolo[1,2-a]quinazolin-5(1H)-one (C18H18N2O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 294.35 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC18H18N2O2
Molecular Weight294.35 g/mol
AppearancePale yellow to yellow crystalline powder
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
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1963
Nitrogen Atoms2

Related A Standards

Recommended Standards

Why CATO?