4-Chloro-5-Hydroxy-3(2H)-Pyridazinone

Modify Date: 2025-08-25 15:49:37

4-Chloro-5-Hydroxy-3(2H)-Pyridazinone Structure
4-Chloro-5-Hydroxy-3(2H)-Pyridazinone structure
Common Name 4-Chloro-5-Hydroxy-3(2H)-Pyridazinone
CAS Number 64178-58-1 Molecular Weight 146.53200
Density 1.79 g/cm3 Boiling Point 213.3ºC at 760 mmHg
Molecular Formula C4H3ClN2O2 Melting Point N/A
MSDS N/A Flash Point 82.8ºC

 Names

Name 4-Chloro-5-Hydroxy-3(2H)-Pyridazinone
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.79 g/cm3
Boiling Point 213.3ºC at 760 mmHg
Molecular Formula C4H3ClN2O2
Molecular Weight 146.53200
Flash Point 82.8ºC
Exact Mass 145.98800
PSA 65.98000
LogP 0.12890
Index of Refraction 1.681

 Safety Information

HS Code 2933990090

 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%

 Synonyms

5-chloro-4-hydroxy-1H-pyridazin-6-one
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