FAB144 CAS # 853122-18-2 is a tetramethylcyclopropyl group synthetic cannabinoid (CB) which reportedly confers peripheral CB2 receptor selectivity over the central CB1 receptor. FAB-144 is an XLR11 analog that has an indazole instead of an indole ring. There is no recognition of the physiological and toxicological properties of this compound. This product is intended for applications in forensics and science.