CI 60724 is a chemical compound, a synthetic purple dye with an anthraquinone unit and is also known as Disperse Violet 27.

Chemical Name

•  1-anilino-4-hydroxyanthracene-9,10-dione

Dyes that contain anthraquinone (an organic aromatic compound derived from anthracene) are characteristically bright in colour.

Chemical Industrial Synthesis Process

• Preparation of reagents. The main raw materials include phthalic anhydride, benzene, and concentrated sulfuric acid.
• Synthesis of anthraquinone intermediate. The production of CI 60724 begins with the condensation of phthalic anhydride with benzene in the presence of concentrated sulfuric acid, forming the anthraquinone intermediate.
• Substitution. The anthraquinone is further treated with specific reagents to introduce functional groups that impart the desired color. This may include sulfonation, nitration, or other substitution reactions.
• Oxidation. The functionalized structure undergoes an oxidation reaction to complete the formation of the anthraquinone chromophore, which is responsible for the coloring properties of CI 60724.
• Purification. The crude CI 60724 product is purified using techniques such as crystallization, filtration, and chromatography to remove impurities and achieve a high-purity colorant.
• Stabilization. The purified CI 60724 is stabilized to ensure its stability during transportation and storage, preventing degradation and oxidation.
• Quality control. The CI 60724 undergoes rigorous quality testing to ensure it meets standards for purity, color intensity, and safety. These tests include chemical analysis, spectroscopy, and microbiological testing.

What it is used for and where

Cosmetics

Restricted cosmetic ingredient as IV/88 a Relevant Item in the Annexes of the European Cosmetics Regulation 1223/2009. Substance or ingredient reported:

• 1-Anilino-4-hydroxyanthraquinone

Cosmetics - INCI Functions

Colorant. This ingredient has the function of colouring the solution in which it is inserted in a temporary, semi-permanent or permanent manner, either alone or in the presence of the complementary components added for colouring.

Safety

 It is an ingredient that has some important health-related contraindications: it should only be used in cosmetic products that have contact with the skin for a short time.

Molecular Formula    C₂₀H₁₃NO₃

Molecular Weight   315.3 g/mol

CAS  19286-75-0

EC number 242-939-0

UNII BN3Q055JL5

DTXSID3066477

DTXSID0093974

Synonyms: 

Disperse Violet 27

Disperse Violet 23