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4,5-dicyano-2-aminoimidazole

Also known as: 2-Amino-1H-imidazole-4,5-dicarbonitrile, 2-Aminoimidazole-4,5-dicarbonitrile, 2-Amino-4,5-dicyano-1H-imidazole, 2-Amino-4,5-imidazoledicarbonitrile, 4,5-Dicyano-2-aminoimidazole, AKOS BBS-00006362, LABOTEST-BB LT00080764, MFCD00129982, EINECS 255-163-2, 1H-Imidazole-4,5-dicarbonitrile, 2-amino-

4,5-dicyano-2-aminoimidazole (CAS 40953-34-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3N5 and a molecular weight of 133.111 g/mol. Key properties include a melting point of 270 °C (dec.)(lit.), a boiling point of 587.3±60.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 309.0±32.9 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
40953-34-2
Jingsj CID
J-1422827-4
Molecular Formula
C5H3N5
Molecular Weight
133.111 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point270 °C (dec.)(lit.)
Boiling Point587.3±60.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point309.0±32.9 °C
Exact Mass133.038849
PSA102.28000
LogP-1.74
Vapor Pressure0.0±1.6 mmHg at 25°C
Refractive Index1.647

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H332 — Harmful if inhaled
  • 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 4,5-dicyano-2-aminoimidazole?

The CAS number of 4,5-dicyano-2-aminoimidazole is 40953-34-2.

What are the molecular formula and molecular weight of 4,5-dicyano-2-aminoimidazole?

4,5-dicyano-2-aminoimidazole has molecular formula C5H3N5 and molecular weight 133.111 g/mol.

Is 4,5-dicyano-2-aminoimidazole hazardous?

4,5-dicyano-2-aminoimidazole has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.

What are the upstream and downstream products of 4,5-dicyano-2-aminoimidazole?

For 4,5-dicyano-2-aminoimidazole, Upstream Products: Carbon, Diaminomaleonitrile; Downstream Products: 2-Phenyl-1H-imidazole-4,5-dicarbonitrile, 1H-Imidazole-5-carboxylic acid, 2-amino-4-cyano-1-methyl-, 1H-Imidazole-4-carboxylic acid, 2-amino-5-cyano-1-methyl-, ethyl ester (9CI).

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

Last updated:

How to cite: Jingsj. "4,5-dicyano-2-aminoimidazole (CAS 40953-34-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1422827-4 (accessed 2026-11-09).

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