5-Methyl-7-(methylsulfonyl)-4-oxo-3,4-dihydropyrido[4,3-d]pyrimidine-8-carbonitrile CAS 1604041-59-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1604041-59-9
Molecular FormulaC10H8N4O3S
Molecular Weight264.26 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Methyl-7-(methylsulfonyl)-4-oxo-3,4-dihydropyrido[4,3-d]pyrimidine-8-carbonitrile CAS 1604041-59-9 chemical structure

Description

The occurrence of 5-Methyl-7-(methylsulfonyl)-4-oxo-3,4-dihydropyrido[4,3-d]pyrimidine-8-carbonitrile is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

5-Methyl-7-(methylsulfonyl)-4-oxo-3,4-dihydropyrido[4,3-d]pyrimidine-8-carbonitrile (CAS 1604041-59-9), molecular formula C10H8N4O3S and molecular weight 264.26 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 5-Methyl-7-(methylsulfonyl)-4-oxo-3,4-dihydropyrido[4,3-d]pyrimidine-8-carbonitrile is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 264.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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

CATO manufactures 5-Methyl-7-(methylsulfonyl)-4-oxo-3,4-dihydropyrido[4,3-d]pyrimidine-8-carbonitrile under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC10H8N4O3S
Molecular Weight264.26 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1993
Nitrogen Atoms4
Sulfur Atoms1

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