Cannabielsoin (CBE)

Molecular Formula: C₁₉H₂₂O₂

CBE has been shown to be formed from CBD as a novel metabolite. Identification of cannabielsoin, a new metabolite of cannabidiol formed by guinea-pig hepatic microsomal enzymes, and its pharmacological activity in mice.
Yamamoto I, Gohda H, Narimatsu S, Yoshimura H.
J Pharmacobiodyn. 1988 Dec;11(12):833-8.
PMID: 3254981

Little research has been done with CBE up to this point. PubChem National Center for Biotechnology Information.
PubChem Compound Database; CID=162113,
https://pubchem.ncbi.nlm.nih.gov/compound/162113
(accessed July 31, 2015). lists 1 patent application that mentions CBE;
METHODS AND COMPOSITIONS FOR TREATING CANCER

Further reading

ChemIDplus: Cannabielson
ACToR: Cannabielson