Fentanyl
Tier C — Watch / tradeFentanyl
Targets：MOR1
Brand：Duragesic, OneDuro, Fenrock, Subsys
Indications (approved)：Pain
Regional status
Synthetic routes & intermediates1 routes
Routes are ordered originator first, then optimised / process (non-patent) routes; each lists steps, overall yield and the intermediate table (code / CAS / name) — ready for supplier sourcing and RFQ. Rendered by this site from structured data; no third-party route graphics used.
| Code | CAS No. | Intermediate |
|---|---|---|
| FENT-001 | 320589-77-3 | piperidin-4-one hydrochloride hydrate |
| FENT-002 | 103-63-9 | (2-bromoethyl)benzene |
| FENT-003 | 39742-60-4 | 1-phenethylpiperidin-4-one |
| FENT-004 | 62-53-3Available | aniline |
| FENT-005 | 21409-26-7 | 1-phenethyl-N-phenylpiperidin-4-amine |
| FENT-006 | 79-03-8 | (8R,9S,10R,13S,14S,17R)-17-(2-hydroxyacetyl)-10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl pentanoate |
Frequently asked questions
What are the approved indications of Fentanyl?
Approved indications include: Pain.
When does the Fentanyl patent expire?
No public expiry year is available for Fentanyl yet; this page updates once verified.
How many synthesis routes are recorded for Fentanyl?
1 synthesis routes are recorded; the shortest is 3 steps with 1.53 g (Fentanyl) total yield. Intermediates in each route carry codes and CAS numbers.
Where can I buy Fentanyl intermediates?
1 intermediate CAS of Fentanyl are available through the Unibest supply network — see the route tables on this page and request a quote per CAS.
How do I get a quote for Fentanyl intermediates?
Open the CAS profile of the target intermediate from this page, or submit an RFQ directly — the CAS enters the matching flow automatically and the supply network responds with quotes.
Source: cross-verified data (structured fields only) · 2026-09-29