Octrizole

CAS 3147-75-9

U.S. production volumes are classified as confidential business information.

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$1.4B

Top sourceIreland 33%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 293399 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 293399, which covers 518 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).

IE 33%IrelandCN 26%ChinaIN 11%IndiaDE 9%GermanyIT 4%Italy

Taiwan
Poland
Canada
Ivory Coast
Greece
Hungary
Indonesia
Latvia
Belgium
Slovakia
Czech Republic
Austria
Netherlands
Finland
Denmark
Croatia
Australia
South Africa
Sweden
Hong Kong
Malta
Singapore
Lithuania
Malaysia
Oman
Serbia

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Mitsubishi International Polymertrade

EPA-registered importers (12)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Basf Se · DE Germany

Lg Chem · KR South Korea

Mitsubishi Engineering Plastics · JP Japan

Songwon Industrial · KR South Korea

Syensqo Sa · BE Belgium

Show all 12

Avient

Basf

Lg Chem America

Mayzo

Mitsubishi Engineering Plastics , America

Solvay

Songwon

Why It Matters

Sectors

ConstructionPlastics & Rubber

Downstream UsesNot recorded

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

Industrial Uses

Used in 3 sectors as 3 functional roles.

•UV stabilizer in Plastics Product Manufacturing (100%)Processing—incorporation into article
•UV stabilizer in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Antioxidant in Adhesive Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Stabilizing agent in Plastics Material and Resin Manufacturing (100%)Use—non-incorporative activities

Vendor Pricing

$0.10/gAaron Chemicals LLC

CountryHong Kong

Pack$52.00 / 500 g

Purity97%

Vendors22 available

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

21 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.11	500 g	97%
BLD Pharmatech Ltd.	China	$0.14	1 kg	97%
MedChemExpress MCE	Sweden	$0.21	1 kg	99.67%
A2B Chem LLC	United States	$0.22	250 g	98%
AK Scientific Specialized	United States	$0.25	1 kg	95%
Combi-Blocks, Inc.	United States	$0.25	1 kg	98%
AA BLOCKS	United States	$0.28	250 g	98%
AK Scientific, Inc.	United States	$0.35	1 kg	98%
BLD Pharmatech Co., Limited	United States	$0.40	100 g	97%
Ambeed, Inc.	United States	$0.40	100 g	97%
BLD Pharmatech GmbH	Germany	$0.45	100 g	97%
Angene International Limited	United States	$0.72	500 g	98%
AstaTech (2 weeks)	United States	$4.00	10 g	95%
Sigma-Aldrich (Rush Stock)	Germany	$4.23	100 g	98%
Sigma-Aldrich	Germany	$4.23	100 g	98%
Fluorochem UK	United Kingdom	$7.15	1 g	95%
Labotest KG	Germany	$217.80	5000 mg	90%
Angene	China → Hong Kong	$4266.67	30 mg	97%
Asinex	Netherlands	$9292.80	50 mg	90%
ChemBridge Corporation	Kazakhstan	$12500.00	10 mg	90%
TimTec, LLC (back-ordered)	United States	$32000.00	15 mg	94%

Chemical Identity

CAS3147-75-9

PubChem CID62485

DTXSIDDTXSID9027522

FormulaC20H25N3O

Mol. Weight323.4 g/mol

SMILESCC(C)(C)CC(C)(C)C1=CC(=C(C=C1)O)N2N=C3C=CC=CC3=N2

Data Sources

EPA CompTox (DSSTox) · DTXSID9027522Retrieved 2026-04-06
PubChem · compound 62485Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Octrizole (CAS 3147-75-9) https://chemicalindependence.com/chemical/3147-75-9/ EPA CompTox (DSSTox): DTXSID9027522. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9027522 PubChem: 62485. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/62485 EPA Chemical Data Reporting: 3147-75-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 3147-75-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293399 for CAS 3147-75-9. Reporting year: 2024. https://usatrade.census.gov/