Extracts. An aliquot of each crude extract from distinct millipede collections were analyzed on GCMS using a RTX-5 column (30 m x 0.25 mm i.d. column) following an instrument method starting 60 °C and going to 250 °C at 10 °C/min. All B. rosea had a prominent peak matching the retention time (17.7 min) and fragmentation as an authentic sample of deoxybuzonamine (1). EIMS m/z (rel %) 207 (45, M + ), .