Santal is a crystalline compound derived from flavone and obtained from red sandalwood and camwood. It is also a colorless crystalline substance, isomeric with piperonal, but having weak acid properties, extracted from sandalwood. In the context of perfumes, Santal is French for Sandal, which itself is short for sandalwood essence or oil or note. Santal is a popular fragrance note in perfumes and is often used in combination with other scents like musk and florals. Santal 33 by Le Labo is a well-known perfume that has become a cult favorite among fashion-conscious people and celebrities.