Darifenacin hydrobromide

Drug ingredient

CAS 133099-07-7

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

Molecular structure of 133099-07-7 — 1 HBr

US productionNot reported

Import value, 2024$6.4B

Top sourceSingapore 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 293499 · basket

These shares come from HS customs code 293499, which covers 575 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).

SG 36%SingaporeIE 23%IrelandCN 11%ChinaCH 6%SwitzerlandIN 5%India

Finland
Netherlands
Canada
Indonesia
Mexico
Taiwan
South Korea
Austria
Croatia
Sweden
Ukraine
Denmark
Israel
Czech Republic
New Zealand
Hong Kong
Kyrgyzstan
Australia
Portugal
South Africa
Poland
Slovenia
Brazil
Slovakia
Vietnam
Latvia
Malta
Hungary
Romania
Kenya
Belarus
Russia
Turkey
Norway

13 FDA-registered drug labelers

Alembic Pharmaceuticals Inc.

Alembic Pharmaceuticals Limited

Assia Chemical Industries Ltd - Teva Tech Site

Aurobindo Pharma Limited

Bryant Ranch Prepack

Cipla Ltd.

Cipla USA Inc.

F.I.S. FABBRICA ITALIANA SINTETICI S.P.A.

Macleods Pharmaceuticals Limited

MSN Pharmachem Private Limited

POLYGEN PHARMACEUTICALS INC.

Rising Pharma Holdings, Inc.

Torrent Pharmaceuticals Limited

Why It Matters

Sectors

Health

Downstream Uses

Appears in 1 drug and cosmetic product listings (FDA).

•Darifenacin

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 FDA shortage records

Vendor Pricing

$20.32/gAK Scientific Specialized

CountryUnited States

Pack$508.00 / 25 g

Purity95%

Vendors5 available

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

4 more vendors

Vendor	Country	$/g	Pack	Purity
AK Scientific, Inc.	United States	$28.48	25 g	98%
Apexbio Technology LLC	United States	$154.00	1 g	99.91%
Princeton BioMolecular Research (SC)	United States	$2900.00	100 mg	90%
Vitas M Chemical Limited	Hong Kong	$3170.00	100 mg	90%

Chemical Identity

CAS133099-07-7

PubChem CID444030

DTXSIDDTXSID9046780

FormulaC28H31BrN2O2

Mol. Weight507.5 g/mol

SMILESC1CN(CC1C(C2=CC=CC=C2)(C3=CC=CC=C3)C(=O)N)CCC4=CC5=C(C=C4)OCC5.Br

Data Sources

PubChem · compound 444030Retrieved 2026-04-07
FDA National Drug Code directoryRetrieved 2026-04-25
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Darifenacin hydrobromide (CAS 133099-07-7) https://chemicalindependence.com/chemical/133099-07-7/ PubChem: 444030. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/444030 FDA National Drug Code directory: CAS 133099-07-7. Retrieved 2026-04-25. https://open.fda.gov/data/ndc/ FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 293499 for CAS 133099-07-7. Reporting year: 2024. https://usatrade.census.gov/