Jump to content

Xylene cyanol

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by 128.23.250.41 (talk) at 18:00, 18 July 2011. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Xylene cyanol
Names
Other names
Acid Blue 147
xylene cyanole
xylene cyanol FF
xylene cyanole FF
C.I. 42135
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.018.334 Edit this at Wikidata
  • InChI=1S/C25H28N2O6S2.Na/c1-5-26-22-11-7-18(13-16(22)3)25(19-8-12-23(27-6-2)17(4)14-19)21-10-9-20(32-34(28)29)15-24(21)33-35(30)31;/h7-15,26H,5-6H2,1-4H3,(H,28,29)(H,30,31);/q;+1/p-1/b25-19-,27-23-; checkY
    Key: NLIVDORGVGAOOJ-KRQUPCAFSA-M checkY
  • InChI=1S/C25H28N2O6S2.Na/c1-5-26-22-11-7-18(13-16(22)3)25(19-8-12-23(27-6-2)17(4)14-19)21-10-9-20(32-34(28)29)15-24(21)33-35(30)31;/h7-15,26H,5-6H2,1-4H3,(H,28,29)(H,30,31);/q;+1/p-1/b25-19-,27-23-;
  • Key: NLIVDORGVGAOOJ-KRQUPCAFSA-M
  • [Na+].CCNc1ccc(cc1C)/C(=C2/C=C\C(=[NH+]\CC)
    C(=C2)C)c3ccc(OS([O-])=O)cc3OS([O-])=O
Properties
C25H27N2NaO6S2
Molar mass 538.61 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

Xylene cyanol can be used as a colour marker to monitor the process of agarose gel electrophoresis and polyacrylamide gel electrophoresis. Bromophenol blue and orange G can also be used for this purpose.

Migration speed

In 1% agarose gels, Xylene cyanol typically migrates at about the same rate as a 4000 base pair DNA fragment. Xylene cyanol or tracking dye on a 6% polyacrylamide gel migrates at the speed of a 140 base pair DNA fragment. On 20% denaturating (7 M UREA) polyacrylamide PAGE gel electrophoresis Xylene cyanol migrates at about rate of 25 base oligonucleotide. Typically 0.005-0.03% of final concentration of Xylene cyanol is used.

References