# Delta-9 THC Molecular Structure Diagram

> **Author:** Benjamin Caplan, MD (ABFM Board Certified, MA Lic. #240562, NPI: 1962722637)
> **Publisher:** CED Clinic (https://cedclinic.com)
> **Canonical URL:** https://cedclinic.com/d50-png-transformation-of-delta-9-thc-from-a-chemistry-perspective/
> **Published:** 2026-09-04T23:04:46-04:00 | **Last Modified / Clinically Audited:** 2026-09-13T14:38:24-04:00
> **Clinical Summary:** How delta-9 THC is converted into its metabolites, what each metabolite does, and how it is broken down, in a comparison table with medical cautions.

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[← Back to the Technical Info Summary Hub](https://cedclinic.com/topic-technical-info/)Diagram & referenceA visual reference. The evidence, sources and clinical interpretation are in the linked article.About this diagramA single conversion drawn side by side. Delta-9-tetrahydrocannabinol is on the left, an arrow labeled CYP2C9 crosses the middle, and 11-hydroxy-delta-9-tetrahydrocannabinol is on the right. The one visible change is at the top of the ring system, where a methyl group becomes a CH2OH group. This graphic covers the liver conversion step; the separate oxidation of THC into CBN is not drawn here.The evidence behind it[Read the evidence: how heat, air, and light change THC over time, and where CBN comes from](https://cedclinic.com/thc-degradation-to-cbn-chemistry/)That article carries the cited studies, the limits of the evidence, and the clinical interpretation.

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### Verification & Medical Governance

- **Lead Clinical Author:** Benjamin Caplan, MD
- **Credentials:** Board Certified in Family Medicine (ABFM), Former CMO Canna Care Docs (250,000+ patients supervised), Founder & CMO CED Clinic & CED Foundation, Author of *The Doctor-Approved Cannabis Handbook* (Penguin Random House).
- **Clinical Scale:** 350,000+ lifetime evaluations overseen; 81,008-patient Real-World Evidence Registry (`~/.ced_rwe_vault.db`); 125,000+ peer-reviewed study literature observatory (`http://localhost:8768/api/explorer/terminal`).
- **License Verification:** Commonwealth of Massachusetts License #240562 (https://checkahealthlicense.mass.gov/).
- **NPI Registry:** 1962722637 (https://npiregistry.cms.hhs.gov/provider-view/1962722637).
- **Ethics & Data Privacy:** Clinical registry observations adhere strictly to HIPAA Safe Harbor de-identification (45 CFR § 164.514(b)) and criteria for secondary research exemption under 45 CFR § 46.104(d)(4).