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Acetaldehyde, homopolymer

CAS 9002-91-9

Molecular structure of 9002-91-9
US productionNot reported
Import value, 2024$2M
Top sourceGermany 48%

EPA exempts this chemical from its 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 291250 · narrow

These shares come from HS customs code 291250, which covers 3 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
DE 48%GermanyCH 48%SwitzerlandCN 3%ChinaIT 1%ItalyIN 1%India

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS9002-91-9
PubChem CIDNot recorded
DTXSIDDTXSID60897059
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

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Brief citations

Acetaldehyde, homopolymer (CAS 9002-91-9) https://chemicalindependence.com/chemical/9002-91-9/ EPA TSCA Inventory: CAS 9002-91-9. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 291250 for CAS 9002-91-9. Reporting year: 2024. https://usatrade.census.gov/