7-benzyl-2-(4-methylphenyl)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4(3H)-one CAS 1031990-66-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1031990-66-5
Molecular FormulaC21H21N3O
Molecular Weight331.41 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-benzyl-2-(4-methylphenyl)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4(3H)-one CAS 1031990-66-5 chemical structure

Description

The occurrence of 7-benzyl-2-(4-methylphenyl)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4(3H)-one is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 7-benzyl-2-(4-methylphenyl)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4(3H)-one (CAS 1031990-66-5), a certified reference material (molecular formula C21H21N3O, MW 331.41 g/mol) for analytical method development and quality control.

Structurally, 7-benzyl-2-(4-methylphenyl)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4(3H)-one (C21H21N3O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 331.41 g/mol, it falls into the moderately-high-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.

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 FormulaC21H21N3O
Molecular Weight331.41 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1988
Nitrogen Atoms3

Related benzyl Standards

Recommended Standards

Why CATO?