2,5-Dimethyl-2,5-cyclohexadiene-1,4-dione
[CAS# 137-18-8]

Identification

• Classification: Chemical reagent >> Organic reagent >> Fatty ketone (including enol)
• Name: 2,5-Dimethyl-2,5-cyclohexadiene-1,4-dione
• Molecular Formula: C₈H₈O₂
• Molecular Weight: 136.15
• CAS Registry Number: 137-18-8
• EC Number: 205-283-6

Properties

• Solubility: Slightly soluble (3.5 g/L) (25 ºC), Calc.^*
• Density: 1.115±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 164 ºC^**
• Boiling point: 69-80 ºC^***
• Flash point: 71.1±17.4 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2014 ACD/Labs)

^** Cookson, R. C.; Chemical Communications (London) 1965, (1), P16.

^*** Bryce-Smith, D.; Journal of the Chemical Society 1964, (Feb.), P873.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319
Acute toxicity	Acute Tox.	3	H301
Specific target organ toxicity - single exposure	STOT SE	3	H335
Acute toxicity	Acute Tox.	4	H302