Food Red No.3 Aluminum Lake (Technical Grade)

12227-78-0

3’,6’-Dihydroxy-2',4',5',7'-tetraiodo-spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one Aluminum Salt; Food Red 14:1; Erythrosine Aluminum Lake

Causes serious eye irritation

>95% (HPLC)

[O-]c1c(I)cc2c(Oc3c(I)c([O-])c(I)cc3C24OC(=O)c5ccccc45)c1I

C20 H6 I4 O5

833.876

InChI=1S/C20H8I4O5/c21-11-5-9-17(13(23)15(11)25)28-18-10(6-12(22)16(26)14(18)24)20(9)8-4-2-1-3-7(8)19(27)29-20/h1-6,25-26H/p-2

IUPAC name: 2',4',5',7'-tetraiodo-3-oxospiro[2-benzofuran-1,9'-xanthene]-3',6'-diolate

Room Temperature

-20°C