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Cacotheline is an organic compound with the chemical formula C21H21N3O7. It is a nitro derivative of brucine obtained by reaction of brucine with nitric acid.[1] It is used as an indicator in the titrimetric analysis of tin ions (Sn2+)
C 1215 (OTTO) Cacotheline, GR Cas 561-20-6 - used for proteomics research.