CUMYL-INACA
The following information was compiled in June 2025 and is subject to change as new research is conducted and as new information becomes available:
Description: CUMYL-INACA is a synthetic cannabinoid precursor that can be used to produce 5F-CUMYL-PINACA, 4CN-CUMYL-BUTINACA, and other structurally related synthetic cannabinoids. Synthetic cannabinoid precursors (e.g., MDMB-INACA, ADB-INACA) began appearing after the implementation of a class-wide synthetic cannabinoid ban imposed by China in July 2021.1-3 CUMYL-INACA was identified by our laboratory in April 2025 and confirmed after acquiring standard reference material.
Sample Source: Philadelphia Medical Examiner’s Office (Philadelphia, PA)
Sample Appearance: Blood specimen
Pharmacology: The activity and potency of CUMYL-INACA are unknown; however, based on structurally similar synthetic cannabinoid precursors, CUMYL-INACA is expected to be inactive or have low potency.
Toxicology: CUMYL-INACA has been detected in one toxicology case to date at the CFSRE.
Drug Materials: CUMYL-INACA has not been detected in drug materials to date at the CFSRE.
Demographics / Geographics: The toxicology specimen originated from Pennsylvania, and CUMYL-INACA was identified alongside other synthetic cannabinoids (e.g., 4CN-CUMYL-BUTINACA and 5F-ADB).
Legal Status: CUMYL-INACA is not currently a scheduled substance in the United States.
- Class:
- Cannabinoid
- Appearance:
- Blood
- Formula:
- C17H17N3O
- MW:
- 279.3
- [M+]:
- 279
- [M+H]+:
- 280.1444
- IUPAC:
- N-(1-methyl-1-phenyl-ethyl)-1H-indazole-3-carboxamide
- Report Date:
- June 30, 2025
