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. References: Samuoliene G, Brazaityte A, Sirtautas R, Virsile A, Sakalauskaite J, Sakalauskiene S, Duchovskis P. LED illumination affects bioactive compounds in romaine baby leaf lettuce. J Sci Food Agric. 2013 Oct;93(13):3286-91. doi: 10.1002/jsfa.6173. Epub 2013 May 15. PubMed PMID: 23584932.

纯度：≥98%

CAS：8004-92-0