1H-Indazole

Also known as: 1,2-Benzodiazole, 1,2-Benzopyrazole, 1,2-Diazaindene, 1H-Benzopyrazole, 1H-indazole, 1h-indazol, 2-Azaindole, BENZ-1,2-DIAZOLE, BENZOPYRAZOLE, EINECS 205-978-4, IFLAB-BB F1918-0009, INDAZOLE, Indazol, Indazole, Isoindazole, MFCD00005691, benzodiazole, indazole-, isoindazole

1H-Indazole (CAS 271-44-3) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C7H6N2 and a molecular weight of 118.136 g/mol. Key properties include a melting point of 145-148 °C(lit.), a boiling point of 270.0±9.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 128.5±11.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 271-44-3
Jingsj CID: J-25015-3
Molecular Formula: C₇H₆N₂
Molecular Weight: 118.136 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	145-148 °C(lit.)
Boiling Point	270.0±9.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	128.5±11.7 °C
Exact Mass	118.053101
PSA	28.68000
LogP	1.82
Vapor Pressure	0.0±0.5 mmHg at 25°C
Refractive Index	1.697
Additional Property	SOLUBLE IN HOT WATER

Activity & Biological Data

Additional Information	[1]. Shang C, et al. The Anticancer Activity of Indazole Compounds: A Mini Review. Curr Top Med Chem. 2021;21(5):363-376. [2]. Pal D, et al. Importance of Indazole against Neurological Disorders. Curr Top Med Chem. 2022;22(14):1136-1151. [3]. Uppulapu SK, et al. Indazole and its Derivatives in Cardiovascular Diseases: Overview, Current Scenario, and Future Perspectives. Curr Top Med Chem. 2022;22(14):1177-1188. [4]. Saha S, et al. Indazole Derivatives Effective against Gastrointestinal Diseases. Curr Top Med Chem. 2022;22(14):1189-1214. [5]. Qin J, et al. Indazole as a Privileged Scaffold: The Derivatives and their Therapeutic Applications. Anticancer Agents Med Chem. 2021;21(7):839-860.

Additional Information

[1]. Shang C, et al. The Anticancer Activity of Indazole Compounds: A Mini Review. Curr Top Med Chem. 2021;21(5):363-376. [2]. Pal D, et al. Importance of Indazole against Neurological Disorders. Curr Top Med Chem. 2022;22(14):1136-1151. [3]. Uppulapu SK, et al. Indazole and its Derivatives in Cardiovascular Diseases: Overview, Current Scenario, and Future Perspectives. Curr Top Med Chem. 2022;22(14):1177-1188. [4]. Saha S, et al. Indazole Derivatives Effective against Gastrointestinal Diseases. Curr Top Med Chem. 2022;22(14):1189-1214. [5]. Qin J, et al. Indazole as a Privileged Scaffold: The Derivatives and their Therapeutic Applications. Anticancer Agents Med Chem. 2021;21(7):839-860.

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 1H-Indazole?

The CAS number of 1H-Indazole is 271-44-3.

What are the molecular formula and molecular weight of 1H-Indazole?

1H-Indazole has molecular formula C7H6N2 and molecular weight 118.136 g/mol.

What are the upstream and downstream products of 1H-Indazole?

For 1H-Indazole, Upstream Products: 2-Chlorobenzaldehyde, Bis(pinacolato)diboron, 4-Bromo-1H-indazole; Downstream Products: 3-bromo-1-methyl-1H-indazole, 2-(1H-Indazol-1-yl)acetic acid, 7-Methyl-1H-indazole.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1H-Indazole (CAS 271-44-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25015-3 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.