4173 gamma-Coniceine Gamma-coniceine, a partly unsaturated piperidine alkaloid, is the most toxic chemical found in Hemlock. It is abundant in leaves and flowers but less common in the fruits, where it is quickly converted to coniine and N-methylconiine. Gamma coniceine is the precursor of the other alkaloids in poison hemlock 1604-01-9 442632 C8H15N White powder. No indication of carcinogenicity to humans (not listed by IARC). Gamma-coniceine, a partly unsaturated piperidine alkaloid, is the most toxic chemical found in Hemlock. 2014-08-29T05:18:31Z 2026-05-21T01:39:47Z C10138 true CCCC1=NCCCC1 C8H15N InChI=1S/C8H15N/c1-2-5-8-6-3-4-7-9-8/h2-7H2,1H3 PQSOVRNZJIENNW-UHFFFAOYSA-N 125.2114 125.120449485 Exogenous Solid 390996 CHEM003079 DTXSID00166872 NS00094588 12.36 39.872800000000005 15.79195970576485 2 1 0 9.68244214865595 1 1 3.54 -2.88 1.64e-01 g/l