Pyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-6(7H)-one CAS 148191-54-2
| CAS No. | 148191-54-2 |
| Molecular Formula | C9H6N4O |
| Molecular Weight | 186.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Pyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-6(7H)-one (C9H6N4O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Pyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-6(7H)-one (CAS 148191-54-2), a certified reference material (molecular formula C9H6N4O, MW 186.17 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), Pyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-6(7H)-one 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 | C9H6N4O |
| Molecular Weight | 186.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 4 |
Related Pyrazolo Standards
- 1H-Pyrazolo[4,3-c][1,8]naphthyridin-4(5H)-one (CAS 153457-27-3)
- methyl pyrazolo[1,5-a]pyrazine-3-carboxylate (CAS 53902-64-0)
- methyl pyrazolo[1,5-a]pyrimidine-2-carboxylate (CAS 331647-95-1)
- 2H-Pyrazolo[3,4-b]quinoxalin-3-amine (CAS 56984-56-6)
- Pyrazolo[1,5-a]quinoxalin-4(5H)-one (CAS 114722-60-0)
- methyl pyrazolo[1,5-a]pyridine-5-carboxylate (CAS 1101120-07-3)
- 1H-pyrazolo[3,4-b]quinolin-3-amine (CAS 106835-44-3)
- 1H-pyrazolo[4,3-c]quinolin-3-amine (CAS 156912-12-8)
Recommended Standards
- (R)-Methyl 2-(3,6-dioxopiperazin-2-yl)acetate (CAS 144239-67-8)
- 2,4-Dihydroxyquinoline-3-carbonitrile (CAS 15000-43-8)
- 2-(6-Methylpyridazin-3-yl)-2H-1,2,3-triazole-4-carbonitrile (CAS 1431728-72-1)
- [1,2,4]Triazolo[1,5-a]quinoxalin-4-ol (CAS 150454-83-4)
- Bicyclo[2.2.1]Heptane-7-carboxylic acid (CAS 5971-67-5)
- Glycocyamine (CAS 352-97-6)
- O-(2-Bromoethyl)hydroxylamine hydrobromide (CAS 65920-18-5)
- Tripterifordin (CAS 139122-81-9)
- 2-Chloro-6-iodo-N,N-dimethylaniline (CAS 1369887-25-1)
- Isavuconazole Impurity 160 (CAS CATO-C4X-1236160)
- (4S,5S)-4-Hydroxy-1-isopropyl-5-methylpyrrolidin-2-one (CAS 150884-80-3)
- 5-(3-Methylpiperidin-1-yl)-2-methylsulfonylaniline (CAS 942474-87-5)
- BENZYL (AZEPAN-3-YLMETHYL)CARBAMATE (CAS 1823835-67-1)
- D-Phe6-Tirzepatide (CAS CATO-CPTD788925)
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