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 for the colorimetric indication of various compounds and is an acid-base indicator.[1] As an acid-base indicator, it changes color from yellow to red between pH 12 and pH 13.[1]
Names | |
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Preferred IUPAC name
Disodium 2,2′-[(1E)-triaz-1-ene-1,3-diyldi(4,1-phenylene)]bis(6-methyl-1,3-benzothiazole-7-sulfonate) | |
Other names
Thiazole Yellow G; Clayton Yellow; C.I. 19540; C.I. Direct Yellow 9
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.015.798 |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C28H19N5Na2O6S4 | |
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).
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References
edit- ^ a b c Thiazole Yellow G at Sigma-Aldrich