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Substance Name: Pyridazine
RN: 289-80-5
UNII: 449GLA0653
InChIKey: PBMFSQRYOILNGV-UHFFFAOYSA-N

Classification Code

  • Drug / Therapeutic Agent

Molecular Formula

  • C4-H4-N2

Molecular Weight

  • 80.0896
 
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Names and Synonyms

Name of Substance

  • Pyridazine

Synonyms

  • 1,2-Diazabenzene
  • 1,2-Diazine
  • EINECS 206-025-5
  • NSC 90792
  • o-Diazine
  • Orthodiazine
  • UNII-449GLA0653

Systematic Name

  • Pyridazine

Registry Numbers

CAS Registry Number

  • 289-80-5

FDA UNII

  • 449GLA0653

System Generated Number

  • 0000289805

Structure Descriptors

InChI

1S/C4H4N2/c1-2-4-6-5-3-1/h1-4H

InChIKey

PBMFSQRYOILNGV-UHFFFAOYSA-N

Smiles

c1ccnnc1

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 2650mg/kg (2650mg/kg)   Progress in Biochemical Pharmacology. Vol. 1, Pg. 542, 1965.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point -8.00E+00 deg C   EXP
Boiling Point 208 deg C   EXP
pKa Dissociation Constant 2.24 (none) 20 EXP
log P (octanol-water) -0.72 (none)   EXP
Water Solubility 1.00E+06 mg/L 25 EXP
Vapor Pressure 0.448 mm Hg 25 EST
Henry's Law Constant 2.87E-06 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 2.30E-13 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.