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1H-Imidazole-4-carboxylic acid

Also known as: 4-imidazolecarboxylic acid, imidazole-4-carboxylic acid, 4-carboxyimidazole, 1H-imidazol-4-ylcarboxylic acid, MFCD00082203, 4-(1H-imidazol-4-yl)carboxylic acid, Imidazol-4-carboxylic acid, 1H-Imidazole-5-carboxylic acid

1H-Imidazole-4-carboxylic acid (CAS 1072-84-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H4N2O2 and a molecular weight of 112.09 g/mol. Key properties include a melting point of 294-295 °C(lit.), a boiling point of 495.0±18.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 253.2±21.2 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1072-84-0
Jingsj CID
J-1993987-8
Molecular Formula
C4H4N2O2
Molecular Weight
112.09 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point294-295 °C(lit.)
Boiling Point495.0±18.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point253.2±21.2 °C
Exact Mass112.027275
PSA65.98000
LogP0.46
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.617

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

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 1H-Imidazole-4-carboxylic acid?

The CAS number of 1H-Imidazole-4-carboxylic acid is 1072-84-0.

What are the molecular formula and molecular weight of 1H-Imidazole-4-carboxylic acid?

1H-Imidazole-4-carboxylic acid has molecular formula C4H4N2O2 and molecular weight 112.09 g/mol.

Is 1H-Imidazole-4-carboxylic acid hazardous?

1H-Imidazole-4-carboxylic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 1H-Imidazole-4-carboxylic acid?

For 1H-Imidazole-4-carboxylic acid, Upstream Products: Imidazole-4-methanol, 4-Bromo-1H-imidazole, Formyl acetate; Downstream Products: 4-Nitro-1H-imidazole-5-carboxylic acid, Imidazole, Imidazole-4-methanol.

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

Last updated:

How to cite: Jingsj. "1H-Imidazole-4-carboxylic acid (CAS 1072-84-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993987-8 (accessed 2026-11-09).

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