Antazoline

Drug ingredient

CAS 91-75-8

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

US productionNot reported

Import value, 2024$114M

Top sourceChina 26%

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 293329 · basket

These shares come from HS customs code 293329, which covers 173 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 26%ChinaIN 17%IndiaKR 16%South KoreaDE 9%GermanyIT 9%Italy

Australia
Brazil
Czech Republic
Ireland
Sweden
Ukraine
Poland
United Arab Emirates
Hungary
Israel
Netherlands
Canada
Saudi Arabia
Greece
Belgium
Austria
Latvia
Singapore
Denmark

1 FDA-registered drug labeler

Womens Choice Pharmaceuticals, LLC

Why It Matters

Sectors

Health

Downstream Uses

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

•Nestabs ONE

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

$29.00/gTargetMol Chemicals

CountryChina (registered: United States)

Pack$29.00 / 1 g

Purity99.76%

Vendors14 available

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

13 more vendors

Vendor	Country	$/g	Pack	Purity
BLD Pharmatech Co., Limited	United States	$421.00	1 g	99%
BLD Pharmatech GmbH	Germany	$421.00	1 g	99%
BLD Pharmatech Ltd.	China	$421.00	1 g	99%
Ambeed, Inc.	United States	$421.00	1 g	99%
A2B Chem LLC	United States	$708.00	250 mg	99%
AA BLOCKS	United States	$784.00	250 mg	99%
Molnova	China	$1380.00	100 mg	99%
Aaron Chemicals LLC	Hong Kong	$2060.00	50 mg	99%
Angene Chemical	China → Hong Kong	$2380.00	50 mg	99%
AstaTech (2 weeks)	United States	$3280.00	100 mg	95%
MedKoo Biosciences, Inc	United States	$3800.00	250 mg	98%
MedChemExpress MCE	Sweden	$6292.00	10 mg	99.7%
Angene International Limited	United States	$16200.00	10 mg	98%

Chemical Identity

CAS91-75-8

PubChem CID2200

DTXSIDDTXSID3022613

FormulaC17H19N3

Mol. Weight265.35 g/mol

SMILESC1CN=C(N1)CN(CC2=CC=CC=C2)C3=CC=CC=C3

Data Sources

PubChem · compound 2200Retrieved 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

Antazoline (CAS 91-75-8) https://chemicalindependence.com/chemical/91-75-8/ PubChem: 2200. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/2200 FDA National Drug Code directory: CAS 91-75-8. 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 293329 for CAS 91-75-8. Reporting year: 2024. https://usatrade.census.gov/