4-Cyclopentene-1,3-dione
[CAS# 930-60-9]

Identification

• Name: 4-Cyclopentene-1,3-dione
• Synonyms: Cyclopentene-3,5-dione; Cyclopentenedione; NSC 155336
• Molecular Formula: C₅H₄O₂
• Molecular Weight: 96.08
• CAS Registry Number: 930-60-9
• EC Number: 213-219-3

Properties

• Solubility: Sparingly soluble (13 g/L) (25 ºC), Calc.^*
• Density: 1.280±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 37 ºC^**
• Boiling point: 60 ºC (1 Torr)^***
• Refractive index: 1.5045 (589.3 nm 20 ºC)^***
• Flash point: 83.9±0.0 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2017 ACD/Labs)

^** "PhysProp" data were obtained from Syracuse Research Corporation of Syracuse, New York (US)

^*** Kucherov, V. F.; Doklady Akademii Nauk SSSR 1960, V131, P1077-9.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H302
Skin sensitization	Skin Sens.	1	H317