7-methyl-4-oxo-2-sulfanyl-3H,4H-pyrido[2,3-d]pyrimidine-5-carboxylic acid CAS 114402-40-3

Purity 97%+In StockPharmaceutical Standards
CAS No.114402-40-3
Molecular FormulaC9H15N3O3S
Molecular Weight245.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-methyl-4-oxo-2-sulfanyl-3H,4H-pyrido[2,3-d]pyrimidine-5-carboxylic acid CAS 114402-40-3 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 7-methyl-4-oxo-2-sulfanyl-3H,4H-pyrido[2,3-d]pyrimidine-5-carboxylic acid.

7-methyl-4-oxo-2-sulfanyl-3H,4H-pyrido[2,3-d]pyrimidine-5-carboxylic acid (CAS 114402-40-3) is a high-purity analytical reference standard with the molecular formula C9H15N3O3S and a molecular weight of 245.30 g/mol.

The molecular framework of 7-methyl-4-oxo-2-sulfanyl-3H,4H-pyrido[2,3-d]pyrimidine-5-carboxylic acid (C9H15N3O3S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 7-methyl-4-oxo-2-sulfanyl-3H,4H-pyrido[2,3-d]pyrimidine-5-carboxylic acid 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 FormulaC9H15N3O3S
Molecular Weight245.30 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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms3
Sulfur Atoms1

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