carminic acid


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Related to carminic acid: carmine

carminic acid

[kär′min·ik ′as·əd]
(organic chemistry)
C22H20O13 A glucosidal hydroxyanthrapurin that is derived from cochineal; a red crystalline dye used as a stain for biological materials. Also known as cochinilin.
References in periodicals archive ?
Carminic acid, the active colouring agent, is one of the safest dyes that exist and is commonly used in foods and cosmetics.
Its dry powdered form is carmine color, which is the carminic acid colorant of cochineal precipitated onto a substrate of aluminum salts.
In reversed-phase studies, we used a derivative of carminic acid, an inexpensive dye with an absorptivity of 5 x 10 (sub 3) l/g cm, as the additive.
Quimica Universal specializes in the production of carminic acid and annatto, natural colors used in food and other applications.
Having studied Armenian cochineal, from its earliest extraction in the 7th century BC to its use in manuscripts, or "miniature paintings", to document Armenian culture and life, Cavusoglu makes fantastic use of the pigment that comes from a carminic acid found in the Ararat or Armenian cochineal insect living in the roots of the Aeluropus littoralis plant.