89933-65-3

Basic information

• Product Name: Reactive Blue 221
• Synonyms: Cuprate(4-),[2-[[[[3-[[4-chloro-6-[ethyl[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]-2-(hydroxy-kO)-5-sulfophenyl]azo-kN2]phenylmethyl]azo-kN1]-4-sulfobenzoato(6-)-kO]-, tetrahydrogen, (SP-4-3)-(9CI); Cuprate(4-),[2-[[[[3-[[4-chloro-6-[ethyl[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]-2-hydroxy-5-sulfophenyl]azo]phenylmethyl]azo]-4-sulfobenzoato(6-)]-,tetrahydrogen; Benzoic acid,2-[[[[3-[[4-chloro-6-[ethyl[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]-2-hydroxy-5-sulfophenyl]azo]phenylmethyl]azo]-4-sulfo-,copper complex; Sumifix Supra Blue BRF
• CAS NO: 89933-65-3
• Molecular Formula: C33H24 Cl Cu N9 O15 S4 . 4 H
• Molecular Weight: 1014.85
• Mol File: 89933-65-3.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Reactive Blue 221(CAS DataBase Reference)
• NIST Chemistry Reference: Reactive Blue 221(89933-65-3)
• EPA Substance Registry System: Reactive Blue 221(89933-65-3)

Safety Data

• Hazardous Substances Data: 89933-65-3(Hazardous Substances Data)

Usage

General Description

Reactive Blue 221, also known as C.I. 61200 or Remazol Blue, is a water-soluble reactive dye commonly used in the textile industry for dyeing cellulose-based fibers such as cotton. This dye is classified as an azo dye, which means it contains nitrogen-nitrogen double bonds. It is known for its vibrant blue color and is often used in the production of denim and other blue-colored textiles. Reactive Blue 221 undergoes a chemical reaction with the cellulose fibers, forming a covalent bond that essentially "locks in" the dye, resulting in excellent colorfastness and wash fastness. However, some azo dyes including Reactive Blue 221 have been found to be toxic to aquatic organisms and may cause skin irritation in humans, leading to concerns about their environmental and health impacts.