2-Methyl-7-oxo-3-phenyl-4,7-dihydropyrazolo[1,5-a]pyrimidine-6-carboxylic acid CAS 1204297-29-9
| CAS No. | 1204297-29-9 |
| Molecular Formula | C14H11N3O3 |
| Molecular Weight | 269.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 2-Methyl-7-oxo-3-phenyl-4,7-dihydropyrazolo[1,5-a]pyrimidine-6-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 269.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO supplies 2-Methyl-7-oxo-3-phenyl-4,7-dihydropyrazolo[1,5-a]pyrimidine-6-carboxylic acid (CAS 1204297-29-9), a certified reference material (molecular formula C14H11N3O3, MW 269.26 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), 2-Methyl-7-oxo-3-phenyl-4,7-dihydropyrazolo[1,5-a]pyrimidine-6-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C14H11N3O3 |
| Molecular Weight | 269.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 3 |
Recommended Standards
- Tert-butyl 3-(2,2,2-trifluoro-1-hydroxyethyl)pyrrolidine-1-carboxylate (CAS 1159981-94-8)
- Tert-butyl 4-(trifluoromethoxy)piperidine-1-carboxylate (CAS 1206523-86-5)
- Methyl 7-amino-2-phenyl[1,2,4]triazolo-[1,5-a]pyrimidine-6-carboxylate (CAS 1158351-21-3)
- Tert-butyl 3-(trifluoromethoxy)piperidine-1-carboxylate (CAS 1206524-11-9)
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