Dihydro-3,3-dimethyl-2H-pyran-2,6(3H)-dione
[CAS# 2938-48-9]

Identification

• Classification: Chemical reagent >> Organic reagent >> Fatty acid
• Name: Dihydro-3,3-dimethyl-2H-pyran-2,6(3H)-dione
• Synonyms: 3,3-Dimethyldihydro-2H-pyran-2,6(3H)-dione; 3,3-Dimethyldihydropyran-2,6-dione; 3,3-Dimethyloxane-2,6-dione; NSC 60199
• Molecular Formula: C₇H₁₀O₃
• Molecular Weight: 142.15
• CAS Registry Number: 2938-48-9
• EC Number: 220-922-9

Properties

• Solubility: Very slightly soluble (0.13 g/L) (25 °C), Calc.^*
• Density: 1.102±0.06 g/cm³ (20 °C 760 Torr), Calc.^*
• Melting point: 123-125 °C^**
• Boiling point: 126 °C (12 Torr)^***
• Flash point: 104.9±15.9 °C, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2020 ACD/Labs)

^** Hawkins, E. G. E.

^*** Rothstein, Eugene

Safety Data

Hazard Classification

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