Titan yellow

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Titan yellow
Structural formula of titan yellow, sodium salt
Ball-and-stick model of the titan yellow molecule, sodium salt
IUPAC name
Disodium 2,2’-[(1E)-triaz-1-ene-1,3-diyldibenzene-4,1-diyl]bis(6-methyl-1,3-benzothiazole-7-sulfonate)
Other names
Thiazole Yellow G; Clayton Yellow; C.I. 19540; C.I. Direct Yellow 9
3D model (JSmol)
ECHA InfoCard 100.015.798
Molar mass 695.720 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Titan yellow is a compound with formula C28H19N5Na2O6S4. It is a triazene dye used as a stain and fluorescent indicator in microscopy.[1] It is also used as a reagent for the detection of magnesium.[1] As an acid-base indicator, it changes color from yellow to red between pH 12 and pH 13.[1]