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CI 45220

Description

CI 45220, also known as Rhodamine B, is a synthetic fluorescent dye used in various cosmetic and personal care products. This vibrant red colorant belongs to the xanthene dye family and is primarily utilized for its intense coloring properties in lipsticks, blushes, and other decorative cosmetics.

The chemical structure of CI 45220 consists of a xanthene core with diethylamino groups, contributing to its strong fluorescent properties. It exhibits excellent color stability and brightness, making it a popular choice for long-lasting makeup formulations. The dye's molecular weight is approximately 479 g/mol, and it typically appears as a reddish-violet powder in its pure form.

While CI 45220 is approved for use in cosmetics in many countries, it is important to note that regulatory restrictions vary. In the European Union, it is permitted in rinse-off products and in lip products with specific concentration limits. However, it is not approved for use in the eye area or in leave-on products that come into contact with mucous membranes.

Formulators should be aware of potential skin sensitization risks associated with CI 45220 and consider alternative colorants for individuals with sensitive skin or known allergies to synthetic dyes.