In this recent podcast the "churches" chemist explains his process of investigating the substance and what he has found so far. He is more circumspect in his descriptions than the PR the church put out. Though he feels he really may have found it. I can't comment on his chemical analysis. Perhaps others who are more molecularly fluent here can?
https://www.podomatic.com/podcasts/entheogenic/episodes/2024-03-25T10_00_00-07_00
https://www.podomatic.com/podcasts/entheogenic/episodes/2024-03-25T10_00_00-07_00