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AB-FUBINACA is an indazole-based synthetic cannabinoid (CB) that potently binds the central CB₁ receptor (K_i = 0.9 nM). This compound has been identified along with AB-PINACA in illegal herbal products. AB-FUBINACA 3-fluorobenzyl isomer is an isomer of AB-FUBINACA that differs by having the fluoro group at the three, rather than four, position on the benzyl group. This compound binds CB₁ with a K_i value of 51.1 nM. This product is intended for research and forensic applications.

N-[(1S)-1-(Aminocarbonyl)-2-methylpropyl]-1-[(3-fluorophenyl)methyl]-1H-indazole-3-carboxamide is an isomer of AB-FUBINACA (A603135) which is an indazole derivative developed as a CB1 receptor modulator used in the treatment of CB1-mediated diseases. Synthetic cannabinoids

[1] TAKAYA MURAKAMI. Differentiation of AB-FUBINACA and its five positional isomers using liquid chromatography-electrospray ionization-linear ion trap mass spectrometry and triple quadrupole mass spectrometry.[J]. Forensic Toxicology, 2018, 36 2: 351-358. DOI: 10.1007/s11419-018-0410-4