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Pentazocine

Tier C — Watch / trade

Pentazocine

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Originator
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First approval
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Expiry (public)
No sales data
Peak sales
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Type

Targets:Opioid receptors

Brand:Fortral, Peltazon, Sosegon, Pentagin

Indications (approved):Pain

Regional status

US
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EU
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China
Approved
1998-01-01
Japan
Approved
1970-03-24

Synthetic routes & intermediates2 routes

Originator routes × 0Optimised (non-patent) × 2Process routes × 0

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.

OptimisedRoute 1Steps 9 · Total yield /
M15703-26-4M2—M3—M4—M5—M6—M7—M8—M91430074-20-6M1074810-91-6M11359-83-1API · Pentazocine
CodeCAS No.Intermediate
-5703-26-42-(4-methoxyphenyl)acetaldehyde
--1-(4-benzyl-2-thioxothiazolidin-3-yl)propan-1-one
--(2S,3R)-3-hydroxy-N-methoxy-4-(4-methoxyphenyl)-N,2-dimethylbutanamide
--(3S,4R)-4-((tert-butyldimethylsilyl)oxy)-5-(4-methoxyphenyl)-3-methylpentan-2-one
--(2R,3R)-1-(4-methoxyphenyl)-3,4-dimethylpent-4-en-2-ol
--1-((2R,3R)-2-azido-3,4-dimethylpent-4-en-1-yl)-4-methoxybenzene
--N-((2R,3R)-1-(4-methoxyphenyl)-3,4-dimethylpent-4-en-2-yl)-4-methylbenzenesulfonamide
---
-1430074-20-6(2R,6R,11R)-8-methoxy-6,11-dimethyl-3-tosyl-1,2,3,4,5,6-hexahydro-2,6-methanobenzo[d]azocine
-74810-91-6(2R,6R,11R)-8-methoxy-6,11-dimethyl-3-(3-methylbut-2-en-1-yl)-1,2,3,4,5,6-hexahydro-2,6-methanobenzo[d]azocine
-359-83-1(2R,6R,11R)-6,11-dimethyl-3-(3-methylbut-2-en-1-yl)-1,2,3,4,5,6-hexahydro-2,6-methanobenzo[d]azocin-8-ol
OptimisedRoute 2Steps 3 · Total yield 4.5 mg (Pentazocine)
M1577991-74-3M213822-06-5M313822-06-5API · Pentazocine
CodeCAS No.Intermediate
-577991-74-3(R)-2-(7-methoxy-1-methyl-2-methylene-1,2,3,4-tetrahydronaphthalen-1-yl)acetaldehyde
-13822-06-5(R)-N-(2-(7-methoxy-1-methyl-2-methylene-1,2,3,4-tetrahydronaphthalen-1-yl)ethyl)-3-methylbut-2-en-1-amine
-13822-06-5(R)-N-(2-(7-methoxy-1-methyl-2-methylene-1,2,3,4-tetrahydronaphthalen-1-yl)ethyl)-3-methylbut-2-en-1-amine

Frequently asked questions

What are the approved indications of Pentazocine?

Approved indications include: Pain.

When does the Pentazocine patent expire?

No public expiry year is available for Pentazocine yet; this page updates once verified.

How many synthesis routes are recorded for Pentazocine?

2 synthesis routes are recorded; the shortest is 3 steps with 4.5 mg (Pentazocine) total yield. Intermediates in each route carry codes and CAS numbers.

Where can I buy Pentazocine intermediates?

All intermediates in Pentazocine routes have CAS profiles — you can submit an RFQ per CAS and it enters the Unibest matching pool.

How do I get a quote for Pentazocine 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) · 2026-10-21