80156-96-3

Basic information

• Product Name: Reactive Red 261
• Synonyms: 2,7-Naphthalenedisulfonic acid, 5-((4-chloro-6-((4-((2-(sulfooxy)ethyl)sulfonyl)phenyl)amino)-1,3,5-triazin-2-yl)amino)-4-hydroxy-3-(phenylazo)-, trisodium salt;Reactive Red 261;5-((4-Chloro-6-((4-((2-sulfooxy)-ethyl)-sulfonyl)-phenyl)-amino)-1,3,5-tria;Red 3BF;2,7-Naphthalenedisulfonic acid, 5-((4-chloro-6-((4-((2-(sulfooxy)ethyl)sulfonyl)phenyl)amino)-1,3,5-triazin-2-yl)amino)-4-hydroxy-3-(2-phenyldiazenyl)-, sodium salt (1:3)
• CAS NO: 80156-96-3
• Molecular Formula: C27H22 Cl N7 O13 S4 . 3 Na
• Molecular Weight: 885.2
• Mol File: 80156-96-3.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Reactive Red 261(CAS DataBase Reference)
• NIST Chemistry Reference: Reactive Red 261(80156-96-3)
• EPA Substance Registry System: Reactive Red 261(80156-96-3)

Safety Data

• Hazardous Substances Data: 80156-96-3(Hazardous Substances Data)

Usage

Description

Reactive Red 261 is a type of reactive dye that exhibits yellow light red color. It is characterized by its light fastness, oxygen bleaching, perspiration fastness, and soaping properties. The dye has a standard ISO rating of 4 for light fastness and 4-5 for oxygen bleaching, while it has a rating of 3-4 for perspiration fastness and soaping.

Uses

Used in Textile Industry:
Reactive Red 261 is used as a dye for coloring textiles, particularly fabrics. Its light fastness and perspiration fastness properties make it suitable for use in garments that are exposed to sunlight and sweat.
Used in Paper Industry:
Reactive Red 261 is also used as a dye in the paper industry for coloring paper products. Its light fastness and oxygen bleaching properties ensure that the color remains vibrant and resistant to fading.
Used in Cosmetic Industry:
Reactive Red 261 can be used as a colorant in cosmetic products, such as lipsticks and blushes, due to its vibrant color and resistance to fading.
Used in Art and Craft Industry:
Reactive Red 261 can be used by artists and crafters for coloring various materials, such as paints, inks, and dyes, due to its light fastness and resistance to fading.

Preparation

aniline diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, and then and ?2,4,6-Trichloro-1,3,5-triazine condensation, again with registration, 2-(3-Aminophenylsulfonyl)ethyl hydrogen sulfate condensation.

Standard

Light Fastness

Fading

Stain

ISO

4