1. D&C Violet No. 2; C.I. No. 60725 Alkanna; orcanette; dyer's alkanet; anchusa; orkanet; (S)-5,8-Dihydroxy-2-(1hydroxy-4-methyl-3pentenyl)-1,4naphthalenedione, [(+)form]:shikonin[(±)-form]: shikalkin; Alkanet; alkanet extract; alkanna red; Alkannin; anchusa acid; anchusin; C.I.75530; C.I. Natural Red 20,

2. Chemical Name and CAS Registry number [517 - 88 - 4] Synonyms/ Formula Alkanna; orcanette; dyer's alkanet; anchusa; orkanet; ( S ) - 5,8 - Dihydroxy - 2 - ( 1 - hydroxy - 4 - methyl - 3 - pentenyl ) - 1,4 - naphthalenedione, [ ( + ) - form]:shikonin[ ( ± ) - form]: shikalkin; Alkanet; alkanet extract; alkanna red; Alkannin; anchusa acid; anchusin; C.I.75530; C.I. Natural Red 20, Functional Categories (not all inclusive) Colouring agent Limitations (for external or internal use, unless specified 2).