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2-Methyl-4-nitroimidazole

Also known as: 2-Methyl-4(5)-nitroimidazole, 2-Methyl-5-nitroimidazole, 2-Methyl-4-nitro-1H-imidazole, Menidazole, Metronidazole Impurity 1

2-Methyl-4-nitroimidazole (CAS 696-23-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H5N3O2 and a molecular weight of 127.10100 g/mol. Key properties include a melting point of 251-255ºC(lit.), a boiling point of 399.5ºC at 760 mmHg, a density of 1.426g/cm3 and a flash point of 195.4ºC. It is classified under GHS with signal word Warning and hazard statements H351 — Suspected of causing cancer. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
696-23-1
Jingsj CID
J-39886-7
Molecular Formula
C4H5N3O2
Molecular Weight
127.10100 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point251-255ºC(lit.)
Boiling Point399.5ºC at 760 mmHg
Density1.426g/cm3
Flash Point195.4ºC
Exact Mass127.03800
PSA74.50000
LogP1.14950
Refractive Index1.591

GHS Safety & Compliance

Health HazardSignal word: Warning
  • H351 — Suspected of causing cancer

Customs & Trade Information

HS Code2933290090
Summary2933290090. other compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure. 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 2-Methyl-4-nitroimidazole?

The CAS number of 2-Methyl-4-nitroimidazole is 696-23-1.

What are the molecular formula and molecular weight of 2-Methyl-4-nitroimidazole?

2-Methyl-4-nitroimidazole has molecular formula C4H5N3O2 and molecular weight 127.10100 g/mol.

Is 2-Methyl-4-nitroimidazole hazardous?

2-Methyl-4-nitroimidazole has GHS signal word Warning and hazard statements H351 — Suspected of causing cancer.

What are the upstream and downstream products of 2-Methyl-4-nitroimidazole?

For 2-Methyl-4-nitroimidazole, Downstream Products: 1,2-Dimethyl-4-nitro-1H-imidazole, 1-(2-bromoethyl)-2-methyl-5-nitro-1H-imidazole, Metronidazole.

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

Last updated:

How to cite: Jingsj. "2-Methyl-4-nitroimidazole (CAS 696-23-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39886-7 (accessed 2026-11-09).

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