Colour Index
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Name: C.I. Food Blue 1-aluminum lake CAS: 16521-38-3 C.I. No.: C.I. 73015 Synonyms C.I. 73015 Aluminum lake; C.I. Acid Blue 74-aluminum lake; C.I. Food Blue 1-aluminum lake; C.I. Food Blue 1:1; C.I. Pigment Blue 63; 1H-indole-5-sulfonic acid, 2-(1,3-dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-, aluminum salt, (2E)- (1:1) Molecular Formula C16H10AlN2O8S2 Molecular Weight 449.370738 InChI InChI=1/C16H10N2O8S2.Al/c19-15-9-5-7(27(21,22)23)1-3-11(9)17-13(15)14-16(20)10-6-8(28(24,25)26)2-4-12(10)18-14;/h1-6,17-18H,(H,21,22,23)(H,24,25,26);/q;+3 CAS Registry Number 16521-38-3 EINECS 240-589-3 Molecular Structure 
Colour Index Database
