Oxybutynin

Tier C — Watch / trade

Oxybutynin

Allergan

Originator

1995

First approval

Expiry (public)

No sales data

Peak sales

Small molecule

Type

Targets：mAChRs

Brand：Gelnique 3%, Kentera, Oxytrol

Indications (approved)：Overactive bladder, Neurogenic bladder dysfunction

Regional status

Approved

2003-02-26

China

Approved

1995-01-01

Japan

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 4 · Total yield /

OXYB-0014358-87-6OXYB-00215206-55-0OXYB-003931-50-0OXYB-00410399-13-0OXYB-0054335-77-7OXYB-00610575-25-4Oxybutynin5633-20-5API · Oxybutynin

Code	CAS No.	Intermediate
OXYB-001	4358-87-6	methyl 2-hydroxy-2-phenylacetate
OXYB-002	15206-55-0	methyl 2-oxo-2-phenylacetate
OXYB-003	931-50-0	cyclohexylmagnesium bromide
OXYB-004	10399-13-0	methyl 2-cyclohexyl-2-hydroxy-2-phenylacetate
OXYB-005	4335-77-7	2-cyclohexyl-2-hydroxy-2-phenylacetic acid
OXYB-006	10575-25-4	4-(diethylamino)but-2-yn-1-ol
Oxybutynin	5633-20-5	4-(diethylamino)but-2-yn-1-yl 2-cyclohexyl-2-hydroxy-2-phenylacetate

OptimisedRoute 2Steps 3 · Total yield /

OXYB-007109-89-7OXYB-008107-19-7OXYB-00922396-77-6API · Oxybutynin

Code	CAS No.	Intermediate
OXYB-007	109-89-7	diethylamine
OXYB-008	107-19-7 Available	prop-2-yn-1-ol
OXYB-009	22396-77-6	4-(diethylamino)but-2-yn-1-yl acetate

Frequently asked questions

What are the approved indications of Oxybutynin?

Approved indications include: Overactive bladder, Neurogenic bladder dysfunction.

When does the Oxybutynin patent expire?

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

How many synthesis routes are recorded for Oxybutynin?

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

Where can I buy Oxybutynin intermediates?

1 intermediate CAS of Oxybutynin 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 Oxybutynin 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) · 2026-10-04