3H-Pyrazolo[3,4-d]pyrimidin-4(5H)-one CAS 161746-79-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 161746-79-8 |
| Molecular Formula | C5H4N4O |
| Molecular Weight | 136.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3H-Pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 161746-79-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H4N4O. Molecular weight: 136.11 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H4N4O |
| Molecular Weight | 136.11 g/mol |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2003 |
| Nitrogen Atoms | 4 |
Related H Standards
- 1H-Pyrazolo[3,4-b]pyrazin-3(2H)-one (CAS 116056-01-0)
- 1H-Pyrazolo[4,3-d]pyrimidin-7(7aH)-one (CAS 179042-24-1)
- 2H-Pyrazolo[4,3-d]pyrimidin-7(6H)-one (CAS 1797409-86-9)
- 1H-Pyrazolo[3,4-d]pyrimidin-4(7H)-one (CAS 180749-06-8)
- 1H-Pyrazolo[3,4-d]pyrimidin-4-ol (CAS 180749-08-0)
- 2H-Pyrazolo[3,4-d]pyrimidin-4-ol (CAS 180749-09-1)
- 1H-Pyrazolo[1,5-a][1,3,5]triazin-2-one (CAS 2140305-63-9)
- 1H-Pyrazolo[3,4-c]pyridazin-3(2H)-one (CAS 2125-85-1)
Recommended Standards
- Isoxazolo[5,4-c]pyridazin-3-amine (CAS 1543119-63-6)
- 4,4'-Bi-4H-1,2,4-triazole (CAS 16227-15-9)
- 4-Cyano-1H-pyrazole-1-carboxamide (CAS 149139-46-8)
- 5-(Boc-amino)pyridine-2-carboxamidoxime (CAS 814262-95-8)
- 2,2-Difluoro-2-(m-tolyl)ethanol (CAS 915133-17-4)
- 1,3-Dimethylcyclobutane-1-carboxylic acid (CAS 806615-12-3)
- Caffeine EP Impurity E (CAS 20041-90-1)
- IB-OSu (CAS 112913-62-9)
- 5-Chloro-4-methylpent-1-ene (CAS 13846-29-2)
- Semaglutide Impurity 158 (x TFA Salt) (CAS CATO-C4X-2226158)
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