Oxybutynin

Drug ingredient

CAS 5633-20-5

This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.

US productionNot reported

Import value, 2024$197M

Top sourceChina 36%

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 292219 · basket

These shares come from HS customs code 292219, which covers 167 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

CN 36%ChinaIT 15%ItalyDE 14%GermanyIN 7%IndiaHU 5%Hungary

Saudi Arabia
Lithuania
Canada
Ukraine
Israel
Singapore
Mexico
Ireland
Netherlands
Malaysia
Slovakia
Denmark
Finland
Latvia
Greece
Austria

3 FDA-registered drug labelers

Allergan, Inc.

PCAS FRANCE

Siegfried Evionnaz SA

Why It Matters

Sectors

Health

Downstream Uses

Appears in 2 drug and cosmetic product listings (FDA).

•Oxytrol
•Oxytrol for Women

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No Shortage

Shortage History

Rows group FDA shortage filings by drug product. Each manufacturer makes its own FDA shortage filing, so one product can carry several reports at once: Available, Limited Availability, Unavailable or to be discontinued.

to be discontinued
Oxybutynin Chloride Tablet
Shortage listed since May 14, 2025

See all current drug shortages

Vendor Pricing

$8.40/gAK Scientific Specialized

CountryUnited States

Pack$840.00 / 100 g

Purity95%

Vendors20 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

19 more vendors

Vendor	Country	$/g	Pack	Purity
Combi-Blocks, Inc.	United States	$8.40	100 g	98%
A2B Chem LLC	United States	$8.91	100 g	99.57%
AA BLOCKS	United States	$9.40	100 g	98%
AK Scientific, Inc.	United States	$11.76	100 g	98%
BLD Pharmatech Ltd.	China	$26.16	25 g	98%
Aaron Chemicals LLC	Hong Kong	$31.52	25 g	98%
AstaTech, Inc	United States	$31.60	5 g	95%
Angene Chemical	China → Hong Kong	$33.68	25 g	98%
MedKoo Biosciences, Inc	United States	$74.00	25 g	98%
TargetMol Chemicals	China → United States	$148.00	1 g	99.99%
TargetMol Chemicals US	United States	$196.00	500 mg	99.99%
Molnova	China	$290.00	200 mg	99%
Fulfilled by Molport	Latvia	$300.00	50 mg	98%
MedChemExpress MCE	Sweden	$300.08	500 mg	99.86%
TargetMol Chemicals EU	Austria	$470.00	100 mg	99.99%
Apexbio Technology LLC	United States	$500.00	100 mg	98.7%
Angene International Limited	United States	$1920.00	100 mg	98%
Angene	China → Hong Kong	$4266.67	30 mg	98%
Key Organics Ltd.	United Kingdom	$6900.00	10 mg	97%

Chemical Identity

CAS5633-20-5

PubChem CID4634

DTXSIDDTXSID0023406

FormulaC22H31NO3

Mol. Weight357.5 g/mol

SMILESCCN(CC)CC#CCOC(=O)C(C1CCCCC1)(C2=CC=CC=C2)O

Data Sources

PubChem · compound 4634Retrieved 2026-04-07
FDA National Drug Code directoryRetrieved 2026-04-25
FDA Drug ShortagesRetrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Oxybutynin (CAS 5633-20-5) https://chemicalindependence.com/chemical/5633-20-5/ PubChem: 4634. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/4634 FDA National Drug Code directory: CAS 5633-20-5. Retrieved 2026-04-25. https://open.fda.gov/data/ndc/ FDA Drug Shortages: CAS 5633-20-5. Retrieved 2026-10-04. https://www.accessdata.fda.gov/scripts/drugshortages/ US Census international trade: HS 292219 for CAS 5633-20-5. Reporting year: 2024. https://usatrade.census.gov/