So since you have made it to this page, you may be wondering what is d-Limonene?

Wikipedia Definition:

Limonene is a colorless liquid hydrocarbon classified as a cyclic terpene. The more common D isomer possesses a strong smell of oranges.[1] It is used in chemical synthesis as a precursor to carvone and as a renewable based solvent in cleaning products.

Limonene takes its name from the lemon, as the rind of the lemon, like other citrus fruits, contains considerable amounts of this compound, which contributes to their odor. Limonene is a chiral molecule, and biological sources produce one enantiomer: the principal industrial source, citrus fruit, contains D-limonene ((+)-limonene), which is the (R)-enantiomer (CAS number 5989-27-5, EINECS number 227-813-5). Racemic limonene is known as dipentene.[2] D-Limonene is obtained commercially from citrus fruits through two primary methods: centrifugal separation or steam distillation.

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