α-Pinene

(1R,5R)-2,6,6-Trimethylbicyclo[3.1.1]heptane; C₁₀H₁₆ = 136.2 (7785-70-8)

General reagent grade of commerce.

, about 0.859; , about 1.466; boiling point, 154° to 156°.

α-Pinene used in gas chromatography complies with the following test.

Assay Examine by gas chromatography as described in the monograph for Bitter-orange-flower Oil using the reagent being examined as the test solution. The area of the principal peak is not less than 99.0% of the total area of the peaks.