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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 1472913Generated: November 3, 2026

4-(2-Hydroxyethyl)-2,5-dimethyl-1,2-dihydro-3H-pyrazol-3-one

4-(2-Hydroxyethyl)-2,5-diMethyl-1H-pyrazol-3(2H)-one · 4-(2-HYDROXYETHYL)-2,5-DIMETHYL-1,2-DIHYDRO-3H-PYRAZOL-3-ONE · 1,2-dihydro-4-(2-hydroxyethyl)-2,5-dimethyl-3H-pyrazol-3-one · 1,2-Dihydro-2,5-dimethyl-4-(2-hydroxyethyl)-3H-pyrazol-3-one · 2,3-Dihydro-2,5-dimethyl-4-(2-hydroxyethyl)-3-oxo-1H-pyrazole · 3H-Pyrazol-3-one, 1,2-dihydro-4-(2-hydroxyethyl)-2,5-dimethyl-

https://huagongshe.com/en/chemical/1472913

4-(2-Hydroxyethyl)-2,5-dimethyl-1,2-dihydro-3H-pyrazol-3-one molecular structure

Identifiers & Physical Properties

CAS No.258281-02-6
Molecular formulaC7H12N2O2
Average molar mass156.185 g/mol
Monoisotopic mass156.08987762 g/mol
SMILESCc1[nH]n(C)c(=O)c1CCO
InChIKeyKAIKGPHUWGZNMW-UHFFFAOYSA-N
PubChem CID1472913
DTXSIDDTXSID30363019

Chemical & Physical Properties

Melting point78-81
Storage conditions2-8°C
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH302+H312+H332-H315-H319-H335
GHS precautionary statementsP271-P280
Hazard symbolsXi
Hazard classIRRITANT
Customs code2933119000

Safety & Regulations

Customs code2933119000
Signal wordWarning
GHS pictogramGHS07
Hazard symbolsXi
Hazard classIRRITANT
GHS hazard statementsH302+H312+H332-H315-H319-H335
GHS precautionary statementsP271-P280