51811-42-8

Basic information

• Product Name: Disperse Yellow brown Se-4br Wet Cake
• Synonyms: Disperse Yellow brown Se-4br Wet Cake;Disperse Orange 3RL
• CAS NO: 51811-42-8
• Molecular Formula: C17H15Cl2N5O2
• Molecular Weight: 392.2393
• Product Categories: Dyes and Pigments
• Mol File: 51811-42-8.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 603.1ºC at 760mmHg
• Flash Point: 318.6ºC
• Appearance: /
• Density: 1.35g/cm3
• CAS DataBase Reference: Disperse Yellow brown Se-4br Wet Cake(CAS DataBase Reference)
• NIST Chemistry Reference: Disperse Yellow brown Se-4br Wet Cake(51811-42-8)
• EPA Substance Registry System: Disperse Yellow brown Se-4br Wet Cake(51811-42-8)

Safety Data

• Hazardous Substances Data: 51811-42-8(Hazardous Substances Data)

Usage

General Description

Disperse Yellow brown Se-4br Wet Cake is a chemical used in the dyeing and coloring of synthetic fibers and fabrics. It is part of the disperse dye class, which is specifically designed to evenly disperse in water and have high resistance to migration, making them suitable for use on polyester, acetate, and nylon materials. The wet cake form indicates that the chemical is in a solid, moist state, ready for incorporation into dyeing processes. This specific shade of yellow-brown is likely to be used in the production of textiles, fashion, and other industries where vibrant and long-lasting color is desired.

Upstream product

• 99-30-9 4-nitro-2,6-dichloroaniline 
• 148-87-8 N-ethyl-N-(2-cyanoethyl)aniline 

Relevant articles and documents

Stable diazonium salts of weakly basic amines—Convenient reagents for synthesis of disperse azo dyes

A new synthetic strategy for industrially important deep-shade disperse azo dyes was presented in this study. The key procedure is to prepare stable solid diazonium salts of weakly basic amines in the absence of concentrated sulfuric acid. Diazotization by tert-butyl nitrite in ethyl acetate was allowed to proceed in the presence of equivalent 1,5-naphthalenedisulfonic acid as stabilizer of diazonium salts and donor of hydrogen ion for the reaction. The separated solid diazonium salts exhibited good thermal stability. The corresponding disperse azo dyes were subsequently synthesized through the azo-coupling of the prepared solid diazonium salts with a range of aromatic tertiary amines. The azo dyes were produced in short reaction time, excellent yields, mild reaction conditions, simple experimental procedure and low energy consumption.

Synthesis of some New Disperse Dyes

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