Carmine real

Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 29.10.2020

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Synonym(s)

Carmine; CAS No 1390-65-4; Crimson

Definition
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Real carmine, also called carmine or crimson, is a red natural dye. Carmine is obtained from dried female cochineal scale insects (Dactylopius coccus).
Carmine is practically insoluble in water, petroleum ether, benzene and chloroform, easily soluble in alkaline solutions and less soluble in ether.

Field of application/use
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Food colouring(E 120)

Aluminium-calcium varnish (mixture of carminic acid, aluminium, lime and protein)

Dyes in microscopy

Cosmetics (lipsticks)

see below C.I. 75470 (INCI)

Undesirable effects
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Allergic (mostly anaphylactic) reactions to carmine are slten. Between 1999 and 2017, 29 cases were registered (28 of them women!). It is assumed that the initial sensitisation to carmine took place through cosmetics. The allergic reactions occurred after consumption of food (Macaron = French meringue and a coloured fish sausage from Japan).

Literature
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  1. Takeo N et al (2018) Cochineal dye-induced immediate allergy: Review of Japanese cases and proposed new diagnostic chart. Allergol Int pii: S1323-8930(18)30033-9.

Outgoing links (2)

C.i. 75470 (inci); E 120;

Authors

Last updated on: 29.10.2020