Phthalocyanine (CI 74100) is a chemical compound, a synthetic dye with Phthalocyanine (an aromatic macrocyclic compound related to porphyrins with an intense blue-green colour.) and is known as Pigment Blue 16.

Chemical Name

• 29H,31H-Phthalocyanine

Chemical Industrial Synthesis Process

• Preparation of reagents. The main raw materials include phthalonitrile, copper (or another central metal), and solvents such as dimethylformamide (DMF).
• Synthesis of phthalocyanine intermediate. The production of CI 74100 begins with the cyclization of phthalonitrile in the presence of copper and solvents under high-temperature conditions, forming the copper phthalocyanine complex.
• Chlorination. The phthalocyanine complex is treated with chlorine to introduce chlorine groups into the molecular structure, enhancing the coloring properties.
• Purification. The crude CI 74100 product is purified using techniques such as crystallization, filtration, and chromatography to remove impurities and achieve a high-purity colorant.
• Stabilization. The purified CI 74100 is stabilized to ensure its stability during transportation and storage, preventing degradation and oxidation.
• Drying. The purified product is dried at controlled temperatures to obtain a fine powder.
• Quality control. The CI 74100 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/104 a Relevant Item in the Annexes of the European Cosmetics Regulation 1223/2009. Substance or ingredient reported:

• 29H,31H-Phthalocyanine

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  C₃₂H₁₈N₈

Molecular Weight   

CAS   574-93-6

EC number 209-378-3

UNII V5PUF4VLGY

DTXSID9025906

MFCD00005085

Synonyms: 

Pigment Blue 16

CI 74100

Heliogen Blue 7560