Xylene cyanol
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Xylene cyanol can be used as a color marker to monitor the process of agarose gel electrophoresis and polyacrylamide gel electrophoresis; in 1% agarose gels, it typically migrates at about the same rate as a 4000 base pair DNA fragment. Bromophenol blue and orange G can also be used for this purpose.
Xylene cyanol is also known as xylene cyanole, Acid Blue 147, xylene cyanol FF, C.I. 42135, ,and sometimes as xylene cyanole FF.
Its CAS number is [4463-44-9][link] and its SMILES structure is CC(/C(C=C3)=[NH+]CC) =CC3=C(C2=C(S(=O) ([O-])=O) C=C(S(=O)([O-])=O) C=C2)/C1=C C=C(NCC)C(C)=C1.
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