7-(Thiophen-2-yl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid CAS 869949-97-3

Description

The occurrence of 7-(Thiophen-2-yl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid 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.

7-(Thiophen-2-yl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 869949-97-3), molecular formula C11H7N3O2S and molecular weight 245.26 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 7-(Thiophen-2-yl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid (C11H7N3O2S) 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. 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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com