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Basic Yellow 40

Also known as 2-[7-(diethylamino)-2-oxo-2H-chromen-3-yl]-1,3-dimethyl-2,3-dihydro-1H-3,1-benzimidazol-1-ium methyl sulfate. It is a fluorescent yellow dye used in forensics with light to visualize cyanoacrylate ester fumed friction ridge detail in human digits. This is used as a dye stain in conjunction with Cyano-acrylate adhesive glues. When visualised under a UV light between 365-500nm the dye the can be seen as a fluorescent image.

Product Details

Category Analytical Reagents
Dyes, Stains & Indicators
Price POA
CAS Number 35869-60-4
Formula C23H27N3O6S
Molecular Weight 473.54
Availability In Stock
Storage Conditions Room temperature
MDL Number Request if not shown

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