7-Nitroindazole

Also known as: 7-Nitro-1H-indazole, 7-NI, 1H-Indazole, 7-nitro-, 7-Nitro-2H-indazole, MFCD00022789, EINECS 220-934-4

7-Nitroindazole (CAS 2942-42-9) is a compound in the Nitrogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C7H5N3O2 and a molecular weight of 163.133 g/mol. Key properties include a melting point of 185-186°C, a boiling point of 211.2±23.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 81.5±22.6 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H319 — Causes serious eye irritation and H351 — Suspected of causing cancer. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2942-42-9
Jingsj CID: J-37679-2
Molecular Formula: C₇H₅N₃O₂
Molecular Weight: 163.133 g/mol
Category: Nitrogen Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	185-186°C
Boiling Point	211.2±23.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	81.5±22.6 °C
Exact Mass	163.038177
PSA	74.50000
LogP	1.42
Vapor Pressure	0.2±0.4 mmHg at 25°C
Refractive Index	1.741
Additional Property	slightly soluble

GHS Safety & Compliance

Acute Toxicity / Health HazardSignal word: Danger

H301 — Toxic if swallowed
H319 — Causes serious eye irritation
H351 — Suspected of causing cancer
H360 — May damage fertility or the unborn child

Activity & Biological Data

Additional Information	[1]. Moore PK, et al. 7-Nitro indazole, an inhibitor of nitric oxide synthase, exhibits anti-nociceptive activity in the mouse without increasing blood pressure. Br J Pharmacol. 1993 Feb;108(2):296-7. [2]. Moore PK, et al. Characterization of the novel nitric oxide synthase inhibitor 7-nitro indazole and related indazoles: antinociceptive and cardiovascular effects. Br J Pharmacol. 1993 Sep;110(1):219-24.

Additional Information

[1]. Moore PK, et al. 7-Nitro indazole, an inhibitor of nitric oxide synthase, exhibits anti-nociceptive activity in the mouse without increasing blood pressure. Br J Pharmacol. 1993 Feb;108(2):296-7. [2]. Moore PK, et al. Characterization of the novel nitric oxide synthase inhibitor 7-nitro indazole and related indazoles: antinociceptive and cardiovascular effects. Br J Pharmacol. 1993 Sep;110(1):219-24.

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 7-Nitroindazole?

The CAS number of 7-Nitroindazole is 2942-42-9.

What are the molecular formula and molecular weight of 7-Nitroindazole?

7-Nitroindazole has molecular formula C7H5N3O2 and molecular weight 163.133 g/mol.

Is 7-Nitroindazole hazardous?

7-Nitroindazole has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H319 — Causes serious eye irritation; H351 — Suspected of causing cancer.

What are the upstream and downstream products of 7-Nitroindazole?

For 7-Nitroindazole, Upstream Products: 2-Methyl-6-nitroaniline, 2-Hydroxy-3-nitrobenzaldehyde; Downstream Products: 3-Bromo-1H-indazol-7-amine, 7-Amino-2-methylindazole, 7-Amino-1-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. "7-Nitroindazole (CAS 2942-42-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37679-2 (accessed 2026-11-06).

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