![Molecular structure of Pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione (CAS 57489-70-0)](/images/chem_structures_svg/382/57489-70-0.svg)
Pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione
Also known as: 7-Hydroxypyrazolo[1,5-a]pyrimidin-5(4H)-one, 5-Hydroxy-4H-pyrazolo[1,5-a]pyrimidin-7-one, 7-Hydroxy-4H-pyrazolo[1,5-a]pyrimidin-5-one, Pyrazolo[1,5-a]pyrimidine-5,7-diol, Pyrazolo[1,5-a]pyrimidin-5(4H)-one, 7-hydroxy-
Pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione (CAS 57489-70-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H5N3O2 and a molecular weight of 151.12300 g/mol. Key properties include a boiling point of 290.61ºC at 760 mmHg, a density of 1.741 g/cm3 and a flash point of 129.556ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 57489-70-0
- Jingsj CID
- J-1437882-6
- Molecular Formula
- C6H5N3O2
- Molecular Weight
- 151.12300 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 290.61ºC at 760 mmHg |
|---|---|
| Density | 1.741 g/cm3 |
| Flash Point | 129.556ºC |
| Exact Mass | 151.03800 |
| PSA | 70.65000 |
| LogP | 0.14050 |
| Refractive Index | 1.793 |
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]pyrimidine-5,7(4H,6H)-dione?
The CAS number of Pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione is 57489-70-0.
What are the molecular formula and molecular weight of Pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione?
Pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione has molecular formula C6H5N3O2 and molecular weight 151.12300 g/mol.
What are the upstream and downstream products of Pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione?
For Pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione, Upstream Products: 3-Aminopyrazole, Diethyl malonate; Downstream Products: 5-Chloropyrazolo[1,5-a]pyrimidin-7-amine, 5,7-Dichloropyrazolo[1,5-a]pyrimidine, 3-Bromo-5,7-dichloropyrazolo[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]pyrimidine-5,7(4H,6H)-dione (CAS 57489-70-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1437882-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.