(-)-α-Pinene is a bicyclic monoterpene reference substance supplied in ROTICHROM® GC quality for gas chromatography. With CAS number 7785-26-4 and empirical formula C₁₀H₁₆, it has a molar mass of 136,24 g/mol and a density of 0,858 g/cm³. The boiling range is 155 to 156 °C and the flash point is 33 °C, which are relevant for safe handling and method setup. Packaged as 100 mg in glass, the material supports calibration, identification and retention-index work on pinene isomers and related terpenes. Analytical laboratories use this enantiomer in essential-oil, fragrance and natural-product GC applications where stereochemical definition matters. The product is offered from manufacturer Carl ROTH in the ROTICHROM® GC reference portfolio. EG number 232-077-3 aids substance tracking in quality systems. The compact glass unit is practical for reference libraries and reduces waste of high-value standards. Density and volatility data help analysts plan injection and column conditions for reproducible chromatography. This article is part of Essential oils & fragrances, in Natural products & essential oils. Key features Purity (GC): ≥99 % CAS number: 7785-26-4 Pack size: 100 mg glass EG nr.: 232-077-3 Empirical formula: C₁₀H₁₆ Molar mass: 136,24 g/mol Technical Information Sheet: Safety Data Sheet:
