Xylene cyanol
Appearance
Names | |
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Other names
Acid Blue 147
xylene cyanole xylene cyanol FF xylene cyanole FF C.I. 42135 | |
Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.018.334 |
CompTox Dashboard (EPA)
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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).
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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.
External links
References