4969 Fd&c red no. 3 Fd&c red no. 3 is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]").<br /> Fd&c red no. 3 belongs to the family of Xanthenes. These are polycyclic aromatic compounds containing a xanthene moiety, which consists of two benzene ring joined to each other by a pyran ring. 16423-68-0 27872 C20H6I4Na2O5 879.9 White powder. No indication of carcinogenicity to humans (not listed by IARC). 2014-09-11T05:22:05Z 2026-04-17T15:38:01Z true [Na+].[Na+].[O-]C(=O)C1=CC=CC=C1C1=C2C=C(I)C(=O)C(I)=C2OC2=C(I)C([O-])=C(I)C=C12 C20H6I4Na2O5 InChI=1S/C20H8I4O5.2Na/c21-11-5-9-13(7-3-1-2-4-8(7)20(27)28)10-6-12(22)17(26)15(24)19(10)29-18(9)14(23)16(11)25;;/h1-6,25H,(H,27,28);;/q;2*+1/p-2 IINNWAYUJNWZRM-UHFFFAOYSA-L 879.8561 879.618936332 Exogenous Solid HMDB32283 25933 CHEM003870 DTXSID60203272 NS00013518 disodium 2-(2,4,5,7-tetraiodo-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate