Polytetramethylene glycol

CAS 25190-06-1

Companies reported imports and no US production of this chemical to EPA for 2023.

US productionZero

Import value, 2024$524M

Import volume49.6K lb

Import dependency100%

Top sourceSouth Korea 27%

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

Polytetramethylene glycol · US import value by year

2013: $0M · Peak 2022: $716M · 2024: $524M · 2025: $530M

Where It Comes From

Customs basis: HS 390729 · basket

EPA reports by year

2023: US production Zero · Imports 49.6K lb
2019: US production Zero · Imports 35.3K lb

These shares come from HS customs code 390729, which covers 46 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).

KR 27%South KoreaDE 13%GermanyCN 11%ChinaJP 9%JapanCH 8%Switzerland

Brazil
Sweden
Argentina
India
Austria
Saudi Arabia
Poland
United Arab Emirates
Ireland
Latvia
Czech Republic
Bulgaria
Norway
Hungary
Denmark
Finland
Australia
Indonesia
Slovakia
Lithuania
Israel
Georgia
Costa Rica
Luxembourg
Romania
Philippines
Greece

Domestic parents -- activity not disclosed (2)

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

Soyventis North America

Tri-Iso

EPA-registered importers (1)

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

Chori America

Why It Matters

Sectors

Plastics & RubberCore Chemicals

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

•Waterproofing agent in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS25190-06-1

PubChem CID3084433

DTXSIDDTXSID2042307

FormulaC8H18O2

Mol. Weight146.23 g/mol

SMILESCCCCOC(CC)CO

Data Sources

EPA CompTox (DSSTox) · DTXSID2042307Retrieved 2026-04-06
PubChem · compound 3084433Retrieved 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

Polytetramethylene glycol (CAS 25190-06-1) https://chemicalindependence.com/chemical/25190-06-1/ EPA CompTox (DSSTox): DTXSID2042307. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID2042307 PubChem: 3084433. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/3084433 EPA Chemical Data Reporting: 25190-06-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 25190-06-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 390729 for CAS 25190-06-1. Reporting year: 2024. https://usatrade.census.gov/