Pyrimido[5,4-d]pyrimidin-2(1H)-one CAS 28285-66-7

Purity 97%+In StockPharmaceutical Standards
CAS No.28285-66-7
Molecular FormulaC6H4N4O
Molecular Weight148.12 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Pyrimido[5,4-d]pyrimidin-2(1H)-one CAS 28285-66-7 chemical structure

Description

Structurally, Pyrimido[5,4-d]pyrimidin-2(1H)-one (C6H4N4O) contains an amide group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 148.12 g/mol, it falls into the low-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Pyrimido[5,4-d]pyrimidin-2(1H)-one (CAS 28285-66-7) is a high-purity analytical reference standard with the molecular formula C6H4N4O and a molecular weight of 148.12 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.

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 FormulaC6H4N4O
Molecular Weight148.12 g/mol
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1965
Nitrogen Atoms4

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