Citation

Baker JT Duke CC (1973) Chemistry of the indoleninones. II. Isolation from the hypobranchial glands of marine molluscs of 6-Bromo-2,2-dimethylthioindolin-3-one and 6-\Bromo-2-methylthioindoleninone as alternative precursors to Tyrian purple. Australian Journal of Chemistry 26, 2153-2157.

https://doi.org/10.1071/CH9732153