CBNACannabinolic acid

Aliases.CBN-A · Cannabinolic acid

The acid precursor of CBN - explicitly excluded from the French narcotics regime (June 2024).

Updated on 1 May 2026

Level of detail

Identifiers

Formula: C₂₂H₂₆O₄
Molar mass: 354.44 g·mol⁻¹
CAS: 2808-39-1
PubChem CID: 3081990
First described: 1969
Origin: Plant (oxidised acid)
InChIKey: KXKOBIRSQLNUPS-UHFFFAOYSA-N

In plain terms

CBNA is CBN in its non-decarboxylated acid form, as it exists in the raw aged flower. Explicitly excluded from the narcotics regime in France since June 2024 - it can lawfully be extracted and marketed.

Receptors and activity

CB1
Partial agonist
CB2
Partial agonist

Agonist
Partial agonist
Antagonist
Modulator
Inverse agonist

Hover over a row for the precise value (Ki, EC50…)

Subjective signature

Hover over an axis to read its definition.

Calm
50
Clarity
30
Sleep
60
Appetite
25
High
15

Editorial estimate, not clinical.

Pharmacology

CBNA is the acid precursor of CBN - the result of the progressive aerobic oxidation of THCA in aged flowers. Characterised by Mechoulam (1969). Not psychotropic. France: the **ANSM Decision of 3 June 2024** amends the **ANSM Decision of 22 May 2024** to **explicitly exclude CBN and CBNA** from the benzo[c]chromene clause - explicit authorisation for extraction / marketing as an isolate. An emerging commercial niche: oils and supplements described as “raw CBN”. No characterised human dose - animal / in vitro data only.