Reactive Blue 2

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Structural formula
Structural formula of Reactive Blue 2
General
Surname Reactive Blue 2
other names
  • 1-Amino-4 - {[4 - ({4-chloro-6 - [(3-sulfophenyl) amino] -1,3,5-triazin-2-yl} amino) -3-sulfophenyl] amino} -9 , 10-dioxo-9,10-dihydro-2-anthracene sulfonic acid ( IUPAC )
  • CI 61211
  • Protein Blue HB
Molecular formula C 29 H 20 ClN 7 O 11 S 3
Brief description

dark blue solid

External identifiers / databases
CAS number
  • 79241-87-5
  • 23422-12-0 (trisodium salt)
PubChem 656725
ChemSpider 571063
Wikidata Q16856203
properties
Molar mass 774.2 g mol −1
Physical state

firmly

safety instructions
GHS labeling of hazardous substances
07 - Warning

Caution

H and P phrases H: 315-319-335
P: 261-305 + 351 + 338
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

CI Reactive Blue 2 is a reactive dye from the group of anthraquinone dyes with a monochlorotriazine reactive anchor.

use

Reactive Blue 2 is used as a reactive dye for dyeing cotton fibers.

As a functional dye , it is used to purify proteins and enzymes in affinity chromatography and to color proteins. It has a high affinity for enzymes with binding sites for nucleotides such as NAD and ATP ( dehydrogenases , kinases etc.) as well as for albumin , coagulation factors and interferons .

As a technical product, Reactive Blue 2 is marketed under various brand names - for example Basilen Blue E-3G , Cibacron Blue F3G-A , Procion Blue HB - and with different compositions (reaction salts , thickening agents , organic by-products). In addition to metanilic acid , the triazinyl ring can also be substituted by sulfanilic acid .

Individual evidence

  1. ↑ a b c d e Data sheet Reactive Blue 2 from Sigma-Aldrich , accessed on May 7, 2014 ( PDF ).
  2. ↑ External identifiers or database links to CI Reactive Blue 2, trisodium salt : CAS number: 23422-12-0, EC number: 245-651-3, ECHA InfoCard: 100.041.487 , PubChem : 90094 , ChemSpider : 81333 , Wikidata : Q75284418 .
  3. ↑ Entry on Cibacron® dyes. In: Römpp Online . Georg Thieme Verlag, accessed on May 7, 2014.