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1,2-Dihydro-3H-pyrazol-3-one
[CAS# 137-45-1]

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Identification
Name1,2-Dihydro-3H-pyrazol-3-one
Synonyms3-Pyrazolone; 4-Pyrazolin-3-one; NSC 520837; Pyrazol-3-ol; Pyrazol-5-ol
Molecular StructureCAS # 137-45-1, 1,2-Dihydro-3H-pyrazol-3-one
Molecular FormulaC3H4N2O
Molecular Weight84.08
CAS Registry Number137-45-1 (60456-92-0)
EC Number878-599-0
Properties
SolubilityFreely soluble (271 g/L) (25 °C), Calc.*
Density1.191±0.06 g/cm3 (20 °C 760 Torr), Calc.*
Melting point164 °C**
*Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2015 ACD/Labs)
**Kasahara, Akira
Safety Data
Hazard Classification
up    Details
HazardClassCategory CodeHazard Statement
Eye irritationEye Irrit.2H319
Skin irritationSkin Irrit.2H315
SDSAvailable
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