Citrus Liab 2 (Citrus Liab 2, E121) - khoom noj khoom haus xim xim. Tshuaj formula C18H16N2O3.
Cov hmoov yog daj mus rau txiv kab ntxwv xim los yog tsaus liab, nrog rau ib tug melting point ntawm 156 ° C. Insoluble hauv dej, tab sis yooj yim soluble nyob rau hauv ntau cov organic solvents.
Raws li cov khoom noj ntxiv, Citrus Red 2 tau siv nrog FDA pom zoo hauv Tebchaws Meskas txij li xyoo 1956 los xim cov tev ntawm qee cov txiv kab ntxwv Florida. Txwv tsis pub siv rau hauv peb lub tebchaws.