Cosmetic ingredient

CI 15985

CI 15985 is the label name for a yellow-orange colorant also known as Sunset Yellow FCF. It is an organic azo dye made by chemical synthesis, not a plant extract: the name identifies the substance that gives a product its colour rather than a botanical oil or extract.

Molecular structure of CI 15985
2D molecular structure
CAS number
2783-94-0
EC number
220-491-7
Molecular formula
C16H10N2Na2O7S2
Molecular weight
452.4
Chemical name
Disodium 6-hydroxy-5-[(4-sulphonatophenyl)azo]naphthalene-2-sulphonate
InChIKey
OIQPTROHQCGFEF-UHFFFAOYSA-L

CI 15985: what it is

CI 15985 is the label name for a yellow-orange colorant also known as Sunset Yellow FCF. It is an organic azo dye made by chemical synthesis, not a plant extract: the name identifies the substance that gives a product its colour rather than a botanical oil or extract.

The principal dye is a sodium salt formed in a chemical coupling process, and United States regulations also allow small amounts of a related salt in the colour additive. That is why Sunset Yellow FCF, FD&C Yellow No. 6, and CI 15985 can occur in different contexts for the same regulated colour material.

CI 15985: what it does in cosmetics

In cosmetics, CI 15985 is used to colour the formula. In practical terms, it can give or adjust the product's yellow-to-orange appearance, which can help distinguish a version, make the texture look more uniform, or match the expected look of the item.

This is a visual role: CI 15985 on its own does not mean that a cosmetic moisturises, treats skin, or delivers a particular performance benefit. United States regulations list it for colouring cosmetics under good manufacturing practice; they do not make the dye a skin- or hair-care active.

Use limits

Restrictions and conditions of use

Cosmetic restriction
IV/31
Catalogue presence

Products containing this ingredient

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