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