Adamantyl-THPINACA (ATHPINACA, AD-THPINACA) is an indazole-based synthetic cannabinoid, which was first reported to Europol in Slovenia in January 2015. It is known as both the 1-adamantyl and 2-adamantyl isomers (SGT-40 and SGT-194 respectively), which can be distinguished by GC-EI-MS. It is banned in Sweden and Russia. Both the 1-adamantyl and 2-adamantyl isomers are specifically listed as illegal drugs in Japan.
^Asada A, Doi T, Tagami T, Takeda A, Sawabe Y (March 2017). "Isomeric discrimination of synthetic cannabinoids by GC-EI-MS: 1-adamantyl and 2-adamantyl isomers of N-adamantyl carboxamides". Drug Testing and Analysis. 9 (3): 378–388. doi:10.1002/dta.2124. PMID27770510.