3,6-Dihydro-2H-pyran
[CAS# 3174-74-1]

Identification

• Name: 3,6-Dihydro-2H-pyran
• Molecular Formula: C₅H₈O
• Molecular Weight: 84.12
• CAS Registry Number: 3174-74-1
• EC Number: 822-338-5
• SMILES: C1COCC=C1

Properties

• Solubility: 1.182e+004 mg/L (25 ºC water)
• Density: 0.9±0.1 g/cm³, Calc.^*
• Index of Refraction: 1.447, Calc.^*
• Melting point: -71.85 ºC
• Boiling Point: 99.44 ºC, 100.3±29.0 ºC (760 mmHg), Calc.^*
• Flash Point: -1.0±22.3 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software.

Safety Data

• Hazard Symbols: GHS07 Warning
• Hazard Statements: H315-H319-H335
• Precautionary Statements: P261-P280

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Specific target organ toxicity - single exposure	STOT SE	3	H335
Flammable liquids	Flam. Liq.	2	H225
Eye irritation	Eye Irrit.	2A	H319
Skin irritation	Skin Irrit.	2	H315