Xylene cyanole FF ≥75% (dye content), Sigma-Aldrich®

Supplier: SIGMA-ALDRICH MICROSCOPY
Warning

Synonyms: C.I. 42135, Sodium hydrogen 4-[[4-(ethylamino)-m-tolyl][4-(ethylimino)-3-methylcyclohexa-2,5-dien-1-ylidene]methyl]benzene-1,3-disulphonate, Sodium 4-((4-(ethylamino)-3-methylphenyl)(4-(ethylimino)-3-methylcyclohexa-2,5-dien-1-ylidene)methyl)-3-sulphobenzenesulphonate, acid Blue 147

M-Clarity™ quality level = MQ200

335940-10G 335940-50G
335940-10GEA 150 EUR
335940-10G 335940-50G
Xylene cyanole FF ≥75% (dye content), Sigma-Aldrich®
Xylene Cyanole FF

Xylene cyanol is often used as a tracking dye during agarose or polyacrylamide gel electrophoresis. It has a slightly negative charge and will migrate in the same direction as DNA, allowing the user to monitor the progress of molecules moving through the gel. The tracking dye typically migrates with the DNA molecules around 5 kb. Xylene cyanol may also be used in loading buffer that facilitates the observation of the sample during gel loading and electrophoresis.

Formula: C₂₅H₂₇N₂NaO₆S₂
MW: 538,62 g/mol
Melting Pt: 295 °C (dec., lit.)
Storage Temperature: RT
MDL Number: MFCD00040657
CAS Number: 2650-17-1
EINECS: 220-167-5
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Specification Test Results

Appearance (Colour) Light Green to Very Dark Green and Purple to Very Dark Purple and Black
Appearance (Form) Powder
Infrared spectrum Conforms to Structure
Wavelength in Water, C=0.01 G/L H2O 612 - 618 nm
Extinction Coefficient ≥65000
Carbon ≥41.2 %
Nitrogen ≥3.8 %
Purity (HPLC) ≥96.0 %
Solubility (Colour), C=1 mg/ml, H₂O Dark Blue

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