Pyrazolo[1,5-a]pyrimidin-5(4H)-one, 3-amino- (9CI)

3-氨基吡唑并[1,5-a]嘧啶-5(4H)-酮

Also known as: 3-aminopyrazolo[1,5-a]pyrimidin-5(4H)-one, 3-Aminopyrazolo[1,5-a]pyrimidin-5(4H)-one

Pyrazolo[1,5-a]pyrimidin-5(4H)-one, 3-amino- (9CI) (CAS 201599-20-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H6N4O and a molecular weight of 150.13800 g/mol. It is also known as 3-aminopyrazolo[1,5-a]pyrimidin-5(4H)-one and 3-Aminopyrazolo[1,5-a]pyrimidin-5(4H)-one. Key properties include a boiling point of 273.838ºC at 760 mmHg, a density of 1.74g/cm3 and a flash point of 119.413ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
201599-20-4
Jingsj CID
J-1134397-8
Molecular Formula
C6H6N4O
Chinese Name
3-氨基吡唑并[1,5-a]嘧啶-5(4H)-酮
Molecular Weight
150.13800 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point273.838ºC at 760 mmHg
Density1.74g/cm3
Flash Point119.413ºC

Frequently Asked Questions

What is the CAS number of Pyrazolo[1,5-a]pyrimidin-5(4H)-one, 3-amino- (9CI)?

The CAS number of Pyrazolo[1,5-a]pyrimidin-5(4H)-one, 3-amino- (9CI) is 201599-20-4.

What are the molecular formula and molecular weight of Pyrazolo[1,5-a]pyrimidin-5(4H)-one, 3-amino- (9CI)?

Pyrazolo[1,5-a]pyrimidin-5(4H)-one, 3-amino- (9CI) has molecular formula C6H6N4O and molecular weight 150.13800 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Pyrazolo[1,5-a]pyrimidin-5(4H)-one, 3-amino- (9CI) (CAS 201599-20-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1134397-8 (accessed 2026-10-26).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.