6786-83-0

Basic information

• Product Name: Solvent Blue 4
• Synonyms: Baso Blue 645;Blue 645;C.I.Solvent Blue 4;α,α-Bis[4-(dimethylamino)phenyl]-4-(phenylamino)-1-naphthalenemethanol;[4-(anilino)-1-naphthyl]-bis[4-(dimethylamino)phenyl]methanol;[4-(anilino)naphthalen-1-yl]-bis[4-(dimethylamino)phenyl]methanol;bis[4-(dimethylamino)phenyl]-[4-(phenylamino)naphthalen-1-yl]methanol;C.I. 44045:1
• CAS NO: 6786-83-0
• Molecular Formula: C33H33N3O
• Molecular Weight: 487.63
• EINECS: 229-851-8
• Product Categories: Solvent Dyestuff;Organics
• Mol File: 6786-83-0.mol
• Article Data: 0

Chemical Properties

• Boiling Point: 682.7 °C at 760 mmHg
• Flash Point: 366.7 °C
• Appearance: /
• Density: 1.199
• Vapor Pressure: 1.43E-19mmHg at 25°C
• Refractive Index: 1.699
• Storage Temp.: -20°C Freezer, Under inert atmosphere
• Solubility: Chloroform (Sparingly), DMSO (Slightly), Methanol (Slightly, Heated)
• PKA: 13.56±0.29(Predicted)
• Water Solubility: 6μg/L at 25℃
• CAS DataBase Reference: Solvent Blue 4(CAS DataBase Reference)
• NIST Chemistry Reference: Solvent Blue 4(6786-83-0)
• EPA Substance Registry System: Solvent Blue 4(6786-83-0)

Safety Data

• Hazardous Substances Data: 6786-83-0(Hazardous Substances Data)

Usage

Description

Solvent Blue 4, also known as α,α-Bis[4-(dimethylamino)phenyl]-4-(phenylamino)-1-naphthalenemethanol, is a solvent dye with a brilliant blue color. It is soluble in water, ethanol, and concentrated sulfuric acid, and exhibits different color shades depending on the solvent and conditions. Its aqueous solution turns dark red-brown when mixed with sodium hydroxide, indicating its potential use in various applications.

Uses

Used in Ink Industry:
Solvent Blue 4 is used as a colorant for inks, providing a vibrant blue hue to the ink formulations. Its solubility in water and ethanol makes it suitable for various ink types, including water-based and solvent-based inks.
Used as a Food Additive:
Solvent Blue 4 is used as a food additive to impart a blue color to certain food products. Its ability to dissolve in water and change color under different conditions allows for its use in a variety of food applications, enhancing the visual appeal of the products.
Properties and Applications:
Solvent Blue 4 exhibits the following properties and applications:
Color: Brilliant blue
Solubility: Soluble in water (blue), ethanol (blue), and concentrated sulfuric acid (red light brown)
Reaction with sodium hydroxide: Forms a dark red-brown precipitate in the dye's aqueous solution
Light Fastness: Poor
Heat Resistance: Stable at temperatures above 180°C
Compatibility: Insoluble in water, no change in the presence of sodium carbonate (5%), and dissolves in hydrochloric acid (5%)
Melting Point: 110°C
These properties make Solvent Blue 4 a versatile dye for various applications, including inks and food additives, where its color and solubility characteristics are advantageous.

Preparation

(a) 4-(Dichloro(4-(dimethylamino)phenyl)methyl)-N,N-dimethylbenzenamine and Naphthalen-1-amine condensation; (b) Bis (4 – (dimethylamino) phenyl) methanol and Naphthalen-1-amine condensation, the product into N – nitroso derivatives and oxidation, remove nitroso.

Flammability and Explosibility

Nonflammable

Standard

Light Fastness

Melting point

Stable

ISO

Poor

InChI:InChI=1/C33H33N3O/c1-35(2)27-18-14-24(15-19-27)33(37,25-16-20-28(21-17-25)36(3)4)31-22-23-32(30-13-9-8-12-29(30)31)34-26-10-6-5-7-11-26/h5-23,34,37H,1-4H3