Quinoline Yellow WS
"Mixture of water-soluble organic compounds from Quinoline Yellow dye" / From Wikipedia, the free encyclopedia
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Quinoline Yellow WS is a mixture of organic compounds derived from the dye Quinoline Yellow SS (spirit soluble). Owing to the presence of sulfonate groups, the WS dyes are water-soluble (WS). It is a mixture of disulfonates (principally), monosulfonates and trisulfonates of 2-(2-quinolyl)indan-1,3-dione with a maximum absorption wavelength of 416 nm.[4]p. 119
Quick Facts Names, Identifiers ...
Names | |
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IUPAC name
Sodium 2-(1,3-dioxoindan-2-yl)quinolinedisulfonate | |
Other names
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Identifiers | |
3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.116.526 |
EC Number |
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E number | E104 (colours) |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C18H13NO5/8/11S1/2/3Na1/2/3 | |
Molar mass | 477.38 g/mol |
Appearance | Greenish yellow powder |
Melting point | 150 °C (302 °F; 423 K) (decomposes) |
Soluble[2] | |
Acidity (pKa) | 1.8 |
Hazards[3] | |
GHS labelling: | |
Warning | |
H302 | |
P264, P270, P301+P312, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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