1-Methyl-2,4-dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-6-sulfonyl chloride CAS 1251923-69-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1251923-69-9
Molecular FormulaC8H6ClN3O4S
Molecular Weight275.67 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Methyl-2,4-dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-6-sulfonyl chloride CAS 1251923-69-9 chemical structure

Description

Based on its molecular formula C8H6ClN3O4S, 1-Methyl-2,4-dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-6-sulfonyl chloride contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 275.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

1-Methyl-2,4-dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-6-sulfonyl chloride (CAS 1251923-69-9), molecular formula C8H6ClN3O4S and molecular weight 275.67 g/mol, is a CATO reference standard with documented purity and traceability.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

CATO manufactures 1-Methyl-2,4-dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-6-sulfonyl chloride 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 FormulaC8H6ClN3O4S
Molecular Weight275.67 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
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.)1990
Halogen ContentCl-containing
Nitrogen Atoms3
Sulfur Atoms1

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