4,5-Dihydro-6-methylpyridazin-3(2H)-one

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Names

[ CAS No. ]:
5157-08-4

[ Name ]:
4,5-Dihydro-6-methylpyridazin-3(2H)-one

[Synonym ]:
6-methyl-4,5-dihydro-2H-pyridazin-3-one
6-METHYL-2,3,4,5-TETRAHYDROPYRIDAZIN-3-ONE
3(2H)-Pyridazinone, 4,5-dihydro-6-methyl-
4,5-Dihydro-6-methyl-3(2H)-pyridazinone
6-Methyl-4,5-dihydro-3-pyridazone
6-Methyl-4,5-dihydro-3(2H)-pyridazinone
6-Methyl-4,5-dihydropyridazin-3(2H)-one
dihydropyridazinone
MFCD00006455

Chemical & Physical Properties

[ Density]:
1.2±0.1 g/cm3

[ Melting Point ]:
102-104 ºC

[ Molecular Formula ]:
C5H8N2O

[ Molecular Weight ]:
112.130

[ Exact Mass ]:
112.063660

[ PSA ]:
41.46000

[ LogP ]:
-1.71

[ Index of Refraction ]:
1.577

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UR6375000
CHEMICAL NAME :
3(2H)-Pyridazinone, 4,5-dihydro-6-methyl-
CAS REGISTRY NUMBER :
5157-08-4
LAST UPDATED :
197901
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C5-H8-N2-O
MOLECULAR WEIGHT :
112.15
WISWESSER LINE NOTATION :
T6NMV FUTJ F1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
320 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#02409

Safety Information

[ Hazard Codes ]:
Xn:Harmful;

[ Risk Phrases ]:
R20/21/22;R36/37/38

[ Safety Phrases ]:
S37/39-S26-S36/37/39-S22

[ RTECS ]:
UR6375000

[ HS Code ]:
2933990090

Synthetic Route

Click to get detail synthetic route

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

  • 4,5-Dihydro-6-(4-methoxyphenyl)pyridazin-3(2H)-one
  • 6-(4-AMIONOPHENYL)-5-METHYLPYRIDAZIN-3(2H)ONE
  • 4,5-dihydro-1-benzoxepin-3(2H)-one
  • 4,5-Dihydro-6-(1-Methylethyl)-3(2H)-Pyridazinone
  • 4,5-dihydro-6-(3-methoxyphenyl)-3(2H)-pyridazinone
  • 4,5-Dihydro-6-methyl-2-[2-(4-pyridyl)ethyl]-3(2H)-pyridazinone
  • 4-((Cyclohexylamino)methyl)benzoic acid hydrochloride
  • 1-[(2,4-Dichlorophenyl)methyl]-N-(1,1-dimethylethyl)-2-methyl-1H-indole-3-methanamine
  • 4-(2-(Pyrrolidin-1-yl)ethoxy)-6-chloro-2-methylpyrimidine
  • 2-Methoxy-6-(pyrazol-1-yl)-benzonitrile
  • 1H-3-Benzazepin-7-ol, 8-chloro-2,3,4,5-tetrahydro-5-(3-iodophenyl)-3-methyl-, (S)-
  • (4-Methyl-tetrahydro-furan-2-yl)-methanol
  • N-(1-cyanocyclopentyl)-2-[4-(4-fluorobenzenesulfonyl)-1,4-diazepan-1-yl]acetamide
  • 4,5,6,7-Tetrahydrobenzo[d]isoxazole-3-carbaldehyde
  • tert-Butyl-DL-alanine
  • 9-Fluoro-3,4-dihydro-1H-benzo[B]azepin-5(2H)-one