Sibesibe, para-sulfate maa jeyo ni binti pelu awon analine kan .Eto idapo sise Behrman ti fihan pe oun akoko ti a maa ri ninu  Boyland-Sims oxidation ni jijeyo arylhydroxylamine-O-sulfate (2).. 
Ní ọdún 1916 Pinnock ṣe àwárí ibùdó, òkè Egún , tí ó sì ra ilẹ̀ náà.. 