Introduction：Basic information about CAS 2257-69-4|4-CHLORO-1,2-DIHYDROPHTHALAZIN-1-ONE, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | 4-CHLORO-1,2-DIHYDROPHTHALAZIN-1-ONE |
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| CAS Number | 2257-69-4 | Molecular Weight | 180.59100 |
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| Density | 1.5g/cm3 | Boiling Point | 452.7ºC at 760mmHg |
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| Molecular Formula | C8H5ClN2O | Melting Point | 265ºC |
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| MSDS | / | Flash Point | 227.6ºC |
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Names
| Name | 4-chloro-2H-phthalazin-1-one |
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| Synonym | More Synonyms |
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Chemical & Physical Properties
| Density | 1.5g/cm3 |
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| Boiling Point | 452.7ºC at 760mmHg |
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| Melting Point | 265ºC |
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| Molecular Formula | C8H5ClN2O |
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| Molecular Weight | 180.59100 |
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| Flash Point | 227.6ºC |
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| Exact Mass | 180.00900 |
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| PSA | 45.75000 |
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| LogP | 1.57650 |
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| Vapour Pressure | 8.2E-09mmHg at 25°C |
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| Index of Refraction | 1.688 |
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| InChIKey | QCKGMJDOJRNSMS-UHFFFAOYSA-N |
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| SMILES | O=c1[nH]nc(Cl)c2ccccc12 |
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Safety Information
| 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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| 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
| 4-chlorophthalazin-1-ol |
| 4-CHLORO-1,2-DIHYDROPHTHALAZIN-1-ONE |
| 4-chloro-1,2-dihydrophthalazinone |
| 4-chlorophthalazin-1(2H)-one |
| 4-Chlorophthalazin-1(2H)-one |
| 1-chloro-4-phthalazinone |
| 4-chloro-1(2H)-phthalazinone |
| 4-Chlor-2H-phthalazin-1-on |
