![Molecular structure of Pyrazolo[1,5-a]pyrimidin-7-ol (CAS 57489-79-9)](/images/chem_structures_svg/040/57489-79-9.svg)
Pyrazolo[1,5-a]pyrimidin-7-ol
Also known as: 1,5,9-triazabicyclo[4.3.0]nona-3,5,7-trien-2-one, Pyrazolo[1,5-a]pyrimidin-7(1H)-one, Pyrazolo[1,5-a]pyrimidin-7-ol, 1H-pyrazolo[1,5-a]pyrimidin-7-one
Pyrazolo[1,5-a]pyrimidin-7-ol (CAS 57489-79-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H5N3O and a molecular weight of 135.12300 g/mol. Key properties include a boiling point of 251.4ºC at 760 mmHg, a density of 1.51g/cm3 and a flash point of 105.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 57489-79-9
- Jingsj CID
- J-1155947-0
- Molecular Formula
- C6H5N3O
- Molecular Weight
- 135.12300 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 251.4ºC at 760 mmHg |
|---|---|
| Density | 1.51g/cm3 |
| Flash Point | 105.8ºC |
| Exact Mass | 135.04300 |
| PSA | 50.42000 |
| LogP | 0.43490 |
| Refractive Index | 1.738 |
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Pyrazolo[1,5-a]pyrimidin-7-ol?
The CAS number of Pyrazolo[1,5-a]pyrimidin-7-ol is 57489-79-9.
What are the molecular formula and molecular weight of Pyrazolo[1,5-a]pyrimidin-7-ol?
Pyrazolo[1,5-a]pyrimidin-7-ol has molecular formula C6H5N3O and molecular weight 135.12300 g/mol.
What are the upstream and downstream products of Pyrazolo[1,5-a]pyrimidin-7-ol?
For Pyrazolo[1,5-a]pyrimidin-7-ol, Upstream Products: Ethyl acetate, Ethyl formate; Downstream Products: 7-Chloropyrazolo[1,5-a]pyrimidine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Pyrazolo[1,5-a]pyrimidin-7-ol (CAS 57489-79-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1155947-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.