4-Chloro-1,2-dihydro-3H-indazol-3-one

4-氯-3-羟基-1H-吲唑

Also known as: 4-Chloro-1H-indazol-3(2H)-one, 4-Chloro-3-hydroxy-1H-indazole, 4-Chloro-1H-indazol-3-ol, 4-chloro-1,2-dihydroindazol-3-one, 3H-Indazol-3-one, 4-chloro-1,2-dihydro-

4-Chloro-1,2-dihydro-3H-indazol-3-one (CAS 787580-87-4) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C7H5ClN2O and a molecular weight of 168.580 g/mol. It is also known as 4-Chloro-1H-indazol-3(2H)-one, 4-Chloro-3-hydroxy-1H-indazole and 4-Chloro-1H-indazol-3-ol. Key properties include a boiling point of 399.1±22.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 195.2±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
787580-87-4
Jingsj CID
J-1438618-1
Molecular Formula
C7H5ClN2O
Chinese Name
4-氯-3-羟基-1H-吲唑
Molecular Weight
168.580 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point399.1±22.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point195.2±22.3 °C

Frequently Asked Questions

What is the CAS number of 4-Chloro-1,2-dihydro-3H-indazol-3-one?

The CAS number of 4-Chloro-1,2-dihydro-3H-indazol-3-one is 787580-87-4.

What are the molecular formula and molecular weight of 4-Chloro-1,2-dihydro-3H-indazol-3-one?

4-Chloro-1,2-dihydro-3H-indazol-3-one has molecular formula C7H5ClN2O and molecular weight 168.580 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Chloro-1,2-dihydro-3H-indazol-3-one (CAS 787580-87-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1438618-1 (accessed 2026-10-25).

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