CI 50325 is a chemical compound, a synthetic dye also known as Acid Violet 50.

Azine is a compound resulting from the reaction of two different carbonyl compounds with hydrazine.

Chemical Name:

 Hydrogen 9-[(3-methoxyphenyl)amino]-7-phenyl-5-(phenylamino)-4,10-disulphonatobenzo[a]phenazinium, sodium salt

Chemical Industrial Synthesis Process

• Preparation of reagents. The main raw materials include diazonium benzene, naphthalene, and azine derivatives. Solvents such as water or alcohol may be used depending on the synthesis technique.
• Synthesis of diazonium intermediate. The production begins with the preparation of the diazonium salt by diazotization of aniline with nitric acid and hydrochloric acid, forming benzene diazonium chloride.
• Coupling reaction. The benzene diazonium chloride is reacted with naphthalene or its derivative in an azo coupling reaction to form an azo intermediate compound.
• Synthesis of azine. The azo intermediate is further treated in the presence of acids and oxidizing agents to form the characteristic azine structure of CI 50325.
• Purification. The crude CI 50325 product is purified using techniques such as crystallization, filtration, and chromatography to remove impurities and achieve a high-purity colorant.
• Stabilization. The purified CI 50325 is stabilized to ensure its stability during transportation and storage, preventing degradation and oxidation.
• Quality control. The CI 50325 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

Cosmetica

Ingrediente cosmetico soggetto a restrizioni IV/83  come Voce pertinente negli allegati del regolamento europeo sui cosmetici n. 1223/2009. Sostanza o ingrediente segnalato: Hydrogen 9-[(3-methoxyphenyl)amino]-7-phenyl-5-(phenylamino)-4,10-disulphonatobenzo[a]phenazinium, sodium salt

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  C₃₅H₂₅N₄Na₂O₇S₂⁺

Molecular Weight  723.7 g/mol

CAS     6856-08-2

UNII    

EC Number    229-951-1

DTXSID401015436

Synonyms: 

Acid Violet 50