Introduction：Basic information about CAS 4344-87-0|3-Methyl-3-pyrazolin-5-one, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | 3-Methyl-3-pyrazolin-5-one |
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| CAS Number | 4344-87-0 | Molecular Weight | 98.103 |
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| Density | 1.3±0.1 g/cm3 | Boiling Point | 309.7 °C at 760 mmHg |
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| Molecular Formula | C4H6N2O | Melting Point | 223-225 °C(lit.) |
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| MSDS | ChineseUSA | Flash Point | / |
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| Symbol |
GHS07 | Signal Word | Warning |
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Names
| Name | 3-Methyl-3-Pyrazolin-5-One |
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| Synonym | More Synonyms |
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Chemical & Physical Properties
| Density | 1.3±0.1 g/cm3 |
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| Boiling Point | 309.7 °C at 760 mmHg |
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| Melting Point | 223-225 °C(lit.) |
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| Molecular Formula | C4H6N2O |
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| Molecular Weight | 98.103 |
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| Exact Mass | 98.048012 |
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| PSA | 48.65000 |
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| LogP | -1.08 |
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| Index of Refraction | 1.599 |
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| InChIKey | WGVHNCAJPFIFCR-UHFFFAOYSA-N |
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| SMILES | Cc1cc(=O)[nH][nH]1 |
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Safety Information
| Symbol |
GHS07 |
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| Signal Word | Warning |
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| Hazard Statements | H315-H319-H335 |
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| Precautionary Statements | P261-P305 + P351 + P338 |
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| Personal Protective Equipment | dust mask type N95 (US);Eyeshields;Gloves |
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| Hazard Codes | Xi: Irritant; |
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| Risk Phrases | R36/37/38 |
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| Safety Phrases | S26-S37/39 |
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| RIDADR | NONH for all modes of transport |
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| WGK Germany | 3 |
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| HS Code | 2933199090 |
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Customs
| HS Code | 2933199090 |
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| Summary | 2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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Articles3
More Articles
| 3-Methyl-3-pyrazolin-5-one. Zhang Z, et al. Acta Crystallogr. Sect. E Struct. Rep. Online 60(2) , o315-16, (2004)
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| The crystal and molecular structure of 3-methyl-3-pyrazolin-5-one. De Camp WH and Stewart JM. Acta Crystallogr. B 27(6) , 1227-32, (1971)
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| Aliphatic aldehydes in the synthesis of condensed 4-alkyl (cycloalkyl)-2-amino-3-cyano-4H-pyrans. Klokol GV, et al. Chem. Heterocycl. Comp. 35(10) , 1183-86, (1999)
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Synonyms
| MFCD00010705 |
| 3-Methyl-3-pyrazolin-5-one |
| 3-Methyl-5-hydroxypyrazole |
| 5-Methyl-2,4-dihydro-3H-pyrazol-3-one |
| 3H-Pyrazol-3-one, 2,4-dihydro-5-methyl- |
| 3-methyl-2-pyrazolin-5-one |
