Cosmetic ingredient

CI 73360

CI 73360, also known as D&C Red No. 30, is an organic pigment in the thioindigo family. Chemical references also use the name Pigment Red 181; these alternative names identify the same defined coloured substance rather than a botanical extract, oil, or mineral ingredient.

Molecular structure of CI 73360
2D molecular structure
CAS number
2379-74-0
EC number
219-163-6
Molecular formula
C18H10Cl2O2S2
Molecular weight
393.3
Chemical name
6-Chloro-2-(6-chloro-4-methyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4-methylbenzo[b]thiophene-3(2H)-one
InChIKey
NDDLLTAIKYHPOD-ISLYRVAYSA-N

CI 73360: what it is

CI 73360, also known as D&C Red No. 30, is an organic pigment in the thioindigo family. Chemical references also use the name Pigment Red 181; these alternative names identify the same defined coloured substance rather than a botanical extract, oil, or mineral ingredient.

The pigment can form crystals, and materials research has described red and black crystalline forms. That physical detail helps place the ingredient on a label: it names the raw material that contributes colour, not a plant-derived blend with separate skin-care properties.

CI 73360: what it does in cosmetics

CI 73360 is used to give a cosmetic a red tone. In make-up and other coloured products, a colourant helps set the visual appearance of the formula and the applied result; it does not by itself provide softness, cleansing, or hydration.

Its role in a product is visual. Research located on its crystalline forms examines physical material properties rather than performance in topical cosmetics, so finding CI 73360 in an ingredient list does not indicate treatment for dark spots, acne, wrinkles, or another skin condition.

CI 73360: conditions and care

In the European Union, CI 73360 is listed among colourants allowed in cosmetics, but it may not be used as a substance in hair-dye products. This condition is specific to hair-colouring products.

Use limits

Restrictions and conditions of use

Cosmetic restriction
IV/100
Catalogue presence

Products containing this ingredient

See which products include it and the name used in each composition.