CONGO RED INDICATOR SOLUTION
SKU
RXSOL-60-6604-352
Also known as
CONGO RED INDICATOR SOLUTION
Congo red is used for staining in amyloidosis,
and for the cell walls of plants and fungi,
and for the outer membrane of Gram-negative bacteria
Remarks
Tag Identification
Note
Congo Red is an indicator dye that is blue-violet at pH 3.0 and red at pH 5.0. It contains a 3,3'-(biphenyl-4,4'-diyldidiazene-2,1-diyl)bis(4-aminonaphthalene-1-sulfonate). It derives from a 3,3'-(biphenyl-4,4'-diyldidiazene-2,1-diyl)bis(4-aminonaphthalene-1-sulfonic acid).
Congo red is used for staining in amyloidosis, and for the cell walls of plants and fungi, and for the outer membrane of Gram-negative bacteria. Apple-green birefringence of Congo red stained preparations under polarized light is indicative of the presence of amyloid fibrils.
Warm 0.1 g of cresol red in a mixture of 2.65 ml of 0.1 M sodium hydroxide and 20 ml of ethanol
