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

Description

Reactive Blue 221, also known as C.I. 61200 or Remazol Blue, is a water-soluble reactive dye that is commonly used in the textile industry for dyeing cellulose-based fibers such as cotton. It is an azo dye, which means it contains nitrogen-nitrogen double bonds, and is known for its vibrant blue color. Reactive Blue 221 forms a covalent bond with cellulose fibers, resulting in excellent colorfastness and wash fastness.

Uses

Used in Textile Industry:
Reactive Blue 221 is used as a dye for cellulose-based fibers such as cotton, providing a vibrant blue color to textiles. It is particularly popular in the production of denim and other blue-colored fabrics.
Used in Denim Production:
Reactive Blue 221 is used as a dye in the production of denim, giving it the characteristic blue color. The dye's ability to form a covalent bond with cellulose fibers ensures excellent colorfastness and wash fastness, making it a preferred choice for denim manufacturing.
However, it is important to note that some azo dyes, including Reactive Blue 221, have been found to be toxic to aquatic organisms and may cause skin irritation in humans. This has led to concerns about their environmental and health impacts, and efforts are being made to develop safer alternatives for textile dyeing.