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1-Methyl-5-nitroimidazole

Also known as: 1-Methyl-5-nitro-1H-imidazole, 1-methyl-5-nitro-imidazole, 1H-Imidazole, 1-methyl-5-nitro-, N-methyl-5-nitroimidazole, Metronidazole Impurity 4

1-Methyl-5-nitroimidazole (CAS 3034-42-2) 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 54-57ºC, a boiling point of 328.9ºC at 760mmHg, a density of 1.44g/cm3 and a flash point of 152.7ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3034-42-2
Jingsj CID
J-13081-4
Molecular Formula
C4H5N3O2
Molecular Weight
127.10100 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point54-57ºC
Boiling Point328.9ºC at 760mmHg
Density1.44g/cm3
Flash Point152.7ºC
Exact Mass127.03800
PSA63.64000
LogP0.85150
Refractive Index1.618

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed

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 1-Methyl-5-nitroimidazole?

The CAS number of 1-Methyl-5-nitroimidazole is 3034-42-2.

What are the molecular formula and molecular weight of 1-Methyl-5-nitroimidazole?

1-Methyl-5-nitroimidazole has molecular formula C4H5N3O2 and molecular weight 127.10100 g/mol.

Is 1-Methyl-5-nitroimidazole hazardous?

1-Methyl-5-nitroimidazole has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.

What are the upstream and downstream products of 1-Methyl-5-nitroimidazole?

For 1-Methyl-5-nitroimidazole, Upstream Products: 4-Nitroimidazole, Dimethyl sulfate, Methyl p-toluenesulfonate; Downstream Products: Glycine, 1-Methyl-5-nitro-1H-imidazole-2-methanol, 1-Methyl-1H-imidazol-5-amine.

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

Last updated:

How to cite: Jingsj. "1-Methyl-5-nitroimidazole (CAS 3034-42-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13081-4 (accessed 2026-11-09).

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