Introduction：Basic information about CAS 5157-08-4|4,5-Dihydro-6-methylpyridazin-3(2H)-one, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | 4,5-Dihydro-6-methylpyridazin-3(2H)-one |
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| CAS Number | 5157-08-4 | Molecular Weight | 112.130 |
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| Density | 1.2±0.1 g/cm3 | Boiling Point | / |
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| Molecular Formula | C5H8N2O | Melting Point | 102-104 ºC |
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| MSDS | / | Flash Point | / |
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Names
| Name | 4,5-Dihydro-6-methylpyridazin-3(2H)-one |
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| Synonym | More Synonyms |
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Chemical & Physical Properties
| Density | 1.2±0.1 g/cm3 |
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| Melting Point | 102-104 ºC |
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| Molecular Formula | C5H8N2O |
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| Molecular Weight | 112.130 |
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| Exact Mass | 112.063660 |
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| PSA | 41.46000 |
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| LogP | -1.71 |
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| Index of Refraction | 1.577 |
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| InChIKey | VOTFXESXPPEARL-UHFFFAOYSA-N |
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| SMILES | CC1=NNC(=O)CC1 |
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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 DATAACUTE 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
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Safety Information
| Hazard Codes | Xn:Harmful; |
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| Risk Phrases | R20/21/22;R36/37/38 |
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| Safety Phrases | S37/39-S26-S36/37/39-S22 |
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| RTECS | UR6375000 |
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| HS Code | 2933990090 |
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Customs
| HS Code | 2933990090 |
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| 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% |
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Synonyms
| 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 |
