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CAS No 289-80-5 , pyridazine Search by region : China

  • Name: pyridazine
  • Synonyms: Orthodiazine; pyridazin; CHEBI:30954; EINECS 206-025-5; 289-80-5; o-Diazine; NSC 90792; 1,2-Diazabenzene;pyridazine; 1,2-Diazine;
  • CAS Registry Number:
  • Melting Point: -8 ºC
  • Flash Point: 85 ºC
  • Boiling Point: 208 ºC
  • Density: 1.103
  • Refractive index: 1.5225-1.5245
  • Water Solubility: MISCIBLE
  • Safety Statements: Moderately toxic by intraperitoneal route. When heated to decomposition it emits toxic vapors of NOx.
  • Flash Point: 85 ºC
  • EINECS: 206-025-5
  • Molecular Weight: 80.08796
  • InchiKey: PBMFSQRYOILNGV-UHFFFAOYSA-N
  • InChI: InChI=1S/C4H4N2/c1-2-4-6-5-3-1/h1-4H
  • Risk Statements: S23;S24/25
  • Molecular Formula: C4H4N2
  • Molecular Structure:CAS No:289-80-5 pyridazine

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References of pyridazine
Title: Pyridazine
CAS Registry Number: 289-80-5
CAS Name: 1,2-Diazine
Synonyms: orthodiazine; oizine
Molecular Formula: C4H4N2
Molecular Weight: 80.09
Percent Composition: C 59.99%, H 5.03%, N 34.98%
Literature References: Prepd from maleic hydrazide: Mizzoni, Spoerri, J. Am. Chem. Soc. 73, 1873 (1951). Resonance energy and position of double bonds: Maccoll, J. Chem. Soc. 1946, 671.
Properties: Liquid. d418 1.107; d423.5 1.1035. mp -8°. bp760 208°; bp14 87°; bp1.0 48°. nD23.5 1.52311. Dipole moment in dioxane at 35° = 3.94. uv max: 338 nm. Resonance energy: 22 kcal. Miscible with water, benzene, DMF. Freely sol in methanol, ethanol, ether. Practically insol in petr ether.
Melting point: mp -8°
Boiling point: bp760 208°; bp14 87°; bp1.0 48°
Index of refraction: nD23.5 1.52311
Absorption maximum: uv max: 338 nm
Density: d418 1.107; d423.5 1.1035
 
Derivative Type: Hydrochloride
Molecular Formula: C4H4N2.HCl
Molecular Weight: 116.55
Percent Composition: C 41.22%, H 4.32%, N 24.04%, Cl 30.42%
Properties: Yellow solid, mp 161-163°.
Melting point: mp 161-163°