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Siloxanes and Silicones, di-Me, hydroxy-terminated

CAS 70131-67-8

Used in 1 industrial sector tracked by the EPA.

Molecular structure of 70131-67-8
US productionNot reported
Import value, 2024$697M
Top sourceGermany 27%

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

Why supply is unknown

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 391000 · basket

EPA reports by year
2023
US production Not published · Imports Not published
2019
US production Not published · Imports Not published

These shares come from HS customs code 391000, which covers 22 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
DE 27%GermanyJP 22%JapanCA 12%CanadaCN 11%ChinaIT 9%Italy
Domestic parents -- activity not disclosed (1)
Wego Chemical Group

Why It Matters

Sectors
Construction
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

  • •Sealant (barrier) in ConstructionUse—non-incorporative activities

Chemical Identity

CAS70131-67-8
PubChem CIDNot recorded
DTXSIDDTXSID20891972
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

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Brief citations

Siloxanes and Silicones, di-Me, hydroxy-terminated (CAS 70131-67-8) https://chemicalindependence.com/chemical/70131-67-8/ EPA CompTox (DSSTox): DTXSID20891972. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID20891972 EPA Chemical Data Reporting: 70131-67-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 70131-67-8. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 391000 for CAS 70131-67-8. Reporting year: 2024. https://usatrade.census.gov/