Pyridazine

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Names

[ CAS No. ]:
289-80-5

[ Name ]:
Pyridazine

[Synonym ]:
MFCD00006463
pyridazin
EINECS 206-025-5
Pyridazine
1,2-diazine
o-diazine
diazine
orthodiazine
Pyridiazine
1,2-Diazabenzene
Oizine

Chemical & Physical Properties

[ Density]:
1.1±0.1 g/cm3

[ Boiling Point ]:
208.0±0.0 °C at 760 mmHg

[ Melting Point ]:
−8 °C(lit.)

[ Molecular Formula ]:
C4H4N2

[ Molecular Weight ]:
80.09

[ Flash Point ]:
85.0±0.0 °C

[ Exact Mass ]:
80.037445

[ PSA ]:
25.78000

[ LogP ]:
-0.77

[ Vapour Pressure ]:
0.3±0.3 mmHg at 25°C

[ Index of Refraction ]:
1.503

[ Storage condition ]:
Refrigerator

[ Water Solubility ]:
MISCIBLE

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UR5267000
CHEMICAL NAME :
Pyridazine
CAS REGISTRY NUMBER :
289-80-5
LAST UPDATED :
199803
DATA ITEMS CITED :
4
MOLECULAR FORMULA :
C4-H4-N2
MOLECULAR WEIGHT :
80.10
WISWESSER LINE NOTATION :
T6NNJ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
2650 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PBPHAW Progress in Biochemical Pharmacology. (S. Karger AG, Postfach CH-4009 Basel, Switzerland) V.1- 1965- Volume(issue)/page/year: 1,542,1965

Safety Information

[ Hazard Codes ]:
Xn

[ Risk Phrases ]:
R36/37/38

[ Safety Phrases ]:
S23-S24/25

[ WGK Germany ]:
3

[ RTECS ]:
UR5267000

[ HS Code ]:
2933990090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • morpholine
  • Malononitrile
  • 4,4-diethoxy-3-hydroxybutanal
  • tetrazine
  • 3,6-Dichloropyridazine
  • 1,4-Epoxy-1,4-dihydronaphthalene
  • 3,6-di-2-pyridyl-1,2,4,5-tetrazine
  • (1R,2S,3R,4S)-bicyclo[2.2.1]hept-5-ene-2,3-dicarbaldehyde
  • 3,4-diazatricyclo[3.1.0.02,6]hex-3-ene
  • 6-benzyl-1-oxidopyridazin-1-ium

DownStream

  • Ethyl 4-pyridazinecarboxylate
  • triethyl 3,4,5-pyridazinetricarboxylate
  • diethyl pyridazine-4,5-dicarboxylate
  • pyridazine-3-carbonitrile
  • 4-Pyridazinecarboxylic acid
  • 4-Pyridazinamine
  • 4-Methylpyridazine
  • 3-Methylpyridazine
  • 3,4-Dimethylpyridazine

Customs

[ HS Code ]: 2933990090

[ Summary ]:
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Related Compounds

  • pyridazine-d4
  • butylpyridazine
  • pyridazine-4-one
  • 3-thiopyridazine
  • diiodopyridazine
  • PHENYLPYRIDAZINE
  • 1-ethyl-N-((7-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methyl)-1H-pyrazole-5-carboxamide
  • 1-(2,6-difluorophenyl)-3-(2-(3-methyl-2,2-dioxidobenzo[c][1,2,5]thiadiazol-1(3H)-yl)ethyl)urea
  • 1-(4-Methoxyphenethyl)-3-((7-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methyl)urea
  • N-((7-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methyl)thiophene-2-sulfonamide
  • N-((7-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methyl)-2,3-dihydrobenzofuran-5-sulfonamide
  • N-((7-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methyl)benzo[c][1,2,5]thiadiazole-4-sulfonamide
  • 4-(1H-pyrazol-1-yl)-N-{[7-(trifluoromethyl)-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridin-3-yl]methyl}benzene-1-sulfonamide
  • 2-(trifluoromethyl)-N-((7-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methyl)benzenesulfonamide
  • 2-chloro-N-((7-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methyl)benzenesulfonamide
  • N-(1-([1,2,4]triazolo[4,3-a]pyrazin-8-yl)pyrrolidin-3-yl)-3-(1H-tetrazol-1-yl)benzamide
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