Oxirane, 2,2'-[(1-methylethylidene)bis[4,1-phenyleneoxy[1-(butoxymethyl)-2,1-ethanediyl]oxymethylene]]bis-

CAS 71033-08-4

Used in 1 industrial sector tracked by the EPA.

US productionNot reported

Import value, 2024$87M

Top sourceChina 27%

EPA lists this chemical for 2023 but publishes zero or no volume for both production and imports.

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.

Where It Comes From

Customs basis: HS 291090 · basket

EPA reports by year

2023: US production Not published · Imports Not published

These shares come from HS customs code 291090, which covers 69 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 27%ChinaJP 26%JapanIT 15%ItalyDE 6%GermanyIN 5%India

Ukraine
Singapore
Canada
Finland
Belgium
Spain

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.

Huntsman

Why It Matters

Sectors

Metals & Mining

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

Chemical Identity

CAS71033-08-4

PubChem CIDNot recorded

DTXSIDDTXSID6052455

FormulaC35H52O8

Mol. Weight600.793 g/mol

SMILESCCCCOCC(COC1=CC=C(C=C1)C(C)(C)C1=CC=C(OCC(COCCCC)OCC2CO2)C=C1)OCC1CO1

Data Sources

EPA TSCA InventoryRetrieved 2026-04-29
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

Oxirane, 2,2'-[(1-methylethylidene)bis[4,1-phenyleneoxy[1-(butoxymethyl)-2,1-ethanediyl]oxymethylene]]bis- (CAS 71033-08-4) https://chemicalindependence.com/chemical/71033-08-4/ EPA TSCA Inventory: CAS 71033-08-4. Retrieved 2026-04-29. https://www.epa.gov/tsca-inventory EPA Chemical Data Reporting: 71033-08-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 71033-08-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291090 for CAS 71033-08-4. Reporting year: 2024. https://usatrade.census.gov/