3,4-Dimethyl-5-pyrazolinone

Modify Date: 2025-08-25 13:49:47

3,4-Dimethyl-5-pyrazolinone Structure
3,4-Dimethyl-5-pyrazolinone structure
Common Name 3,4-Dimethyl-5-pyrazolinone
CAS Number 6628-22-4 Molecular Weight 112.13000
Density 1.25g/cm3 Boiling Point 307.5ºC at 760 mmHg
Molecular Formula C5H8N2O Melting Point 269-271ºC
MSDS N/A Flash Point 139.7ºC

 Names

Name 3,4-Dimethyl-5-pyrazolone
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.25g/cm3
Boiling Point 307.5ºC at 760 mmHg
Melting Point 269-271ºC
Molecular Formula C5H8N2O
Molecular Weight 112.13000
Flash Point 139.7ºC
Exact Mass 112.06400
PSA 41.46000
Index of Refraction 1.579
InChIKey PRCIXKQBKWRGMA-UHFFFAOYSA-N
SMILES CC1=NNC(=O)C1C

 Safety Information

Hazard Codes Xi
HS Code 2933199090

 Customs

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%

 Synonyms

3,4-dimethyl-1,4-dihydropyrazol-5-one
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