3H-Pyrazol-3-one,2,4-dihydro
3H-Pyrazol-3-one,2,4-dihydro structure
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Common Name | 3H-Pyrazol-3-one,2,4-dihydro | ||
|---|---|---|---|---|
| CAS Number | 137-44-0 | Molecular Weight | 84.07670 | |
| Density | 1.44g/cm3 | Boiling Point | N/A | |
| Molecular Formula | C3H4N2O | Melting Point | 162 °C | |
| MSDS | N/A | Flash Point | N/A | |
Summary: 1H-Pyrazol-5(4H)-one (Chinese name: 二氫吡唑酮), CAS number 137-44-0, has a molecular formula of C3H4N2O and a molecular weight of 84.07670. It appears as a solid, white to light yellow powder or lump, with a melting point of 162 °C and a density of 1.44g/cm3. For research-use only, not for medical or clinical usage.
This table lists Chinese names, IUPAC names and various aliases of this chemical substance.
| Name | 1H-Pyrazol-5(4H)-one |
|---|---|
| Synonym | More Synonyms |
This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.
| Density | 1.44g/cm3 |
|---|---|
| Melting Point | 162 °C |
| Molecular Formula | C3H4N2O |
| Molecular Weight | 84.07670 |
| Exact Mass | 84.03240 |
| PSA | 41.46000 |
| Index of Refraction | 1.63 |
| InChIKey | ZRHUHDUEXWHZMA-UHFFFAOYSA-N |
| SMILES | O=C1CC=NN1 |
This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.
| Hazard Codes | Xi |
|---|---|
| HS Code | 2933199090 |
This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.
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3H-Pyrazol-3-on... CAS#:137-44-0 |
| Literature: Bioorganic and Medicinal Chemistry Letters, , vol. 20, # 5 p. 1661 - 1664 |
This table lists upstream starting materials and downstream derivative products related to this chemical.
| Precursor 1 | |
|---|---|
| DownStream 1 | |
CAS#:10234-66-9This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.
| HS Code | 2933199090 |
|---|---|
| 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% |
This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.
| 1,4-dihydropyrazol-5-one |
This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.
| Q: What is the melting point of 1H-Pyrazol-5(4H)-one? |
| A: Melting point of 1H-Pyrazol-5(4H)-one is 162 °C. |
| Q: What is the CAS number of 1H-Pyrazol-5(4H)-one? |
| A: CAS number of 1H-Pyrazol-5(4H)-one is 137-44-0. |
| Q: What is the English name of 1H-Pyrazol-5(4H)-one? |
| A: The English name of 1H-Pyrazol-5(4H)-one is 1H-Pyrazol-5(4H)-one. |
| Q: What is the molecular weight of 1H-Pyrazol-5(4H)-one? |
| A: Molecular weight of 1H-Pyrazol-5(4H)-one is 84.07670. |
| Q: What is the InChIKey of 1H-Pyrazol-5(4H)-one? |
| A: InChIKey of 1H-Pyrazol-5(4H)-one is ZRHUHDUEXWHZMA-UHFFFAOYSA-N. |
| Q: What is the SMILES notation of 1H-Pyrazol-5(4H)-one? |
| A: SMILES notation of 1H-Pyrazol-5(4H)-one is O=C1CC=NN1. |
| Q: What are the downstream products of 1H-Pyrazol-5(4H)-one? |
| A: Related downstream products(CAS) of 1H-Pyrazol-5(4H)-one: 10234-66-9. |
| Q: What are the upstream materials of 1H-Pyrazol-5(4H)-one? |
| A: Related upstream materials(CAS) of 1H-Pyrazol-5(4H)-one: 63857-17-0. |
| Q: What is the polar surface area (PSA) of 1H-Pyrazol-5(4H)-one? |
| A: Polar surface area (PSA) of 1H-Pyrazol-5(4H)-one is 41.46000. |
| Q: What is the molecular formula of 1H-Pyrazol-5(4H)-one? |
| A: Molecular formula of 1H-Pyrazol-5(4H)-one is C3H4N2O. |
This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.
| Shanghai Nianxing Industrial Co., Ltd |
| Dayang Chem (Hangzhou) Co., Ltd. |