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Atomfair Pyridazine C4H4N2 CAS 289-80-5

Pyridazine (CAS 289-80-5) is a heterocyclic organic compound with the molecular formula C4H4N2. As a member of the diazine family, it features a six-membered ring containing two nitrogen atoms in adjacent positions (1,2-diazine). This high-purity compound is ideal for pharmaceutical research, agrochemical development, and material science applications. Pyridazine serves as a versatile building block in medicinal chemistry due to its electron-deficient nature, enabling participation in various nucleophilic and electrophilic reactions. Our product is rigorously tested to ensure ≥98% purity (GC), with batch-specific certificates of analysis available. Available in quantities from grams to kilograms, it is packaged under inert gas to…

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Description

Pyridazine (CAS 289-80-5) is a heterocyclic organic compound with the molecular formula C4H4N2. As a member of the diazine family, it features a six-membered ring containing two nitrogen atoms in adjacent positions (1,2-diazine). This high-purity compound is ideal for pharmaceutical research, agrochemical development, and material science applications. Pyridazine serves as a versatile building block in medicinal chemistry due to its electron-deficient nature, enabling participation in various nucleophilic and electrophilic reactions. Our product is rigorously tested to ensure ≥98% purity (GC), with batch-specific certificates of analysis available. Available in quantities from grams to kilograms, it is packaged under inert gas to ensure stability and longevity. Store in a cool, dry place away from light and moisture for optimal shelf life.

Properties

  • CAS Number: 289-80-5
  • Complexity: 30.5
  • IUPAC Name: pyridazine
  • InChI: InChI=1S/C4H4N2/c1-2-4-6-5-3-1/h1-4H
  • InChI Key: PBMFSQRYOILNGV-UHFFFAOYSA-N
  • Exact Mass: 80.037448136
  • Molecular Formula: C4H4N2
  • Molecular Weight: 80.09
  • SMILES: C1=CC=NN=C1
  • Topological: 25.8
  • Monoisotopic Mass: 80.037448136
  • Synonyms: PYRIDAZINE, Orthodiazine, 1,2-Diazine, o-Diazine, pyridazin, 1,2-Diazabenzene, oizine, 1,2-Diazin, EINECS 206-025-5, NSC 90792, UNII-449GLA0653, CHEBI:30954, PYRIDAZINE [MI], NSC-90792, 449GLA0653, DTXSID7059777, DTXCID7037892, 206-025-5, inchi=1/c4h4n2/c1-2-4-6-5-3-1/h1-4, pbmfsqryoilngv-uhfffaoysa-n, 289-80-5, MFCD00006463, Pyridazine, 98%, SCHEMBL2851, SCHEMBL5104, SCHEMBL20899, SCHEMBL64299, CHEMBL15719, SCHEMBL218022, SCHEMBL347256, SCHEMBL450070, SCHEMBL1395780, SCHEMBL6003246, SCHEMBL18427180, SCHEMBL24057971, BCP22434, NSC90792, BBL027585, SBB059541, STL373492, AKOS000281293, CS-W007494, HY-W007494, PB42471, SY008960, DB-030300, NS00041506, P0616, ST51044500, EN300-85759, F14906, Q420238

Application

Pyridazine is widely used as a precursor in the synthesis of pharmaceuticals, including antihypertensive and anticancer agents. Its electron-deficient structure makes it valuable in the development of agrochemicals such as herbicides and fungicides. Researchers also utilize pyridazine derivatives in materials science for creating luminescent compounds and conductive polymers. Additionally, it serves as a ligand in coordination chemistry and catalysis.

Safety and Hazards

GHS Hazard Statements

  • H302 (20%): Harmful if swallowed [Warning Acute toxicity, oral]
  • H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
  • H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
  • H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

  • P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

  • Acute Tox. 4 (20%)
  • Skin Irrit. 2 (100%)
  • Eye Irrit. 2A (100%)
  • STOT SE 3 (100%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.

Disclaimer

Intended Use & Restrictions

This product is sold exclusively for laboratory research, analytical testing, or non-commercial purposes.

  • Strictly prohibited: Resale, repackaging, or formulation into commercial products.
  • Not approved for human/animal use, diagnostics, or manufacturing (including pharmaceuticals, agrochemicals, or consumer goods).

Patent & Regulatory Compliance

Certain molecules may be protected by active patents or regulatory restrictions.

  • Buyers must independently verify patent status (e.g., via USPTO/EPO/CNIPA) and comply with local laws.
  • Atomfair LLC does not provide legal assurances regarding patent non-infringement or jurisdictional compliance.

Liability Release

By purchasing, the buyer agrees to:

  • Use this product only as permitted by law.
  • Indemnify Atomfair LLC against all claims arising from misuse, patent infringement, or regulatory violations.

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