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Home/Compounds/Dye & Pigment/Reactive blue 21
C40H25CuN9O14S5
1079.6 g/mol
Dye & PigmentWarning

Reactive Blue 21

CAS12236-86-1
Category
Dye & Pigment
Compound Class
Organometallic
Primary Use
reactive dye for textile coloring

Reactive Blue 21 is a copper-containing reactive dye designed for textile coloring. It forms covalent bonds with fibers, providing durable coloration in aqueous dyeing processes.

reactive dye for textile coloring

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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CAS 12236-86-1

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Related Compounds

ApplicationSame Use

2-Naphthalenesulfonic acid, 7-(acetylamino)-4-hydroxy-3-((4-((2-(sulfooxy)ethyl)sulfonyl)phenyl)azo)-, sodium salt

CAS71902-15-3

reactive dye for textile coloring

ReferenceSame Category

Pigment Violet 27

CAS12237-62-6

Disperse dye for textiles

ReferenceSame Category

Acid Yellow 49

CAS12239-15-5

acid dye for textiles

ReferenceSame Category

Reactive Violet 1

CAS12239-45-1

reactive dye for textiles

ReferenceSame Category

Pigment Blue 15:2

CAS12239-87-1

Pigment for plastics and coatings

Safety Reference

Harmful
Harmful
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Identifiers
IUPAC Name

copper 33-[[4-(2-hydroxyethylsulfonyl)phenyl]sulfamoyl]-2,11,20,29,39,40-hexaza-37,38-diazanidanonacyclo[28.6.1.13,10.112,19.121,28.04,9.013,18.022,27.031,36]tetraconta-1,3(40),4(9),5,7,10,12(39),13(18),14,16,19,21,23,25,27,29,31(36),32,34-nonadecaene-6,15,24-trisulfonic acid

InChIKey

WXQMFIJLJLLQIS-UHFFFAOYSA-N

SMILES

C1=CC(=CC=C1NS(=O)(=O)C2=CC3=C(C=C2)C4=NC5=NC(=NC6=NC(=NC7=C8C=C(C=CC8=C([N-]7)N=C3[N-]4)S(=O)(=O)O)C9=C6C=C(C=C9)S(=O)(=O)O)C1=C5C=C(C=C1)S(=O)(=O)O)S(=O)(=O)CCO.[Cu+2]

Synonyms (16)
  • C.I. Reactive Blue 21
  • Diamira Turquoise Blue
  • Levafix Turquoise Blue E-G
  • REACTIVE EMERALD BLUE KN-G
  • REACTIVE TURQUOISE BLUE KN-G
  • REMAZOL TURQUOISE BLUE G
  • REMAZOL TURQUOISE BLUE G 133
  • Reactive Blue 21
  • Remasol Turquoise Blue B
  • Remasol Turquoise Blue G
  • SUMIFIX TURQUOIS BLUE G
  • SUNZOL TURQUOISE BLUE G
  • Sumifix Turquoise Blue G