2,4-Dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-6-sulfonyl chloride CAS 1384431-51-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1384431-51-9
Molecular FormulaC7H4ClN3O4S
Molecular Weight261.64 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,4-Dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-6-sulfonyl chloride CAS 1384431-51-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 261.64 g/mol gives 2,4-Dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-6-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2,4-Dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-6-sulfonyl chloride (CAS 1384431-51-9) is a high-purity analytical reference standard with the molecular formula C7H4ClN3O4S and a molecular weight of 261.64 g/mol.

Based on its molecular formula C7H4ClN3O4S, 2,4-Dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-6-sulfonyl chloride contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 261.64 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC7H4ClN3O4S
Molecular Weight261.64 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Halogen ContentCl-containing
Nitrogen Atoms3
Sulfur Atoms1

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