D-Limonene is a colorless liquid hydrocarbon, classified as a cyclic terpene.  It is one of the most common terpenes in nature, which is nice because it has a wide range of practical uses.  It's name comes from "Lemons" and "Limes", because of it's abundance within their rinds.  D-Limonene is extracted from the peels of oranges through the use of a Soxhlet extractor.  It is an incredible natural degreaser and cleaner found in many of the popular orange scented cleaning products.

For more information on D-Limonene read our full blog post about it here