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Bicyclo[3.1.0]hexan-3-ol, 4-methyl-1-(1-methylethyl)-, (1S,3S,4R,5R)-

CAS 21653-20-3

Molecular structure of 21653-20-3
US productionNot reported
Import value, 2024$118M
Top sourceGermany 19%

EPA lists this chemical as inactive, meaning no company reported making, importing or processing it in the US from 2006 to 2016.

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 290619 · basket

These shares come from HS customs code 290619, which covers 137 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
DE 19%GermanyCH 17%SwitzerlandBR 17%BrazilIN 11%IndiaIT 10%Italy

Why It Matters

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

Chemical Identity

CAS21653-20-3
PubChem CIDNot recorded
DTXSIDDTXSID80885170
FormulaC10H18O
Mol. Weight154.253 g/mol
SMILESCC(C)[C@@]12C[C@@H]1[C@@H](C)[C@@H](O)C2

Data Sources

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Brief citations

Bicyclo[3.1.0]hexan-3-ol, 4-methyl-1-(1-methylethyl)-, (1S,3S,4R,5R)- (CAS 21653-20-3) https://chemicalindependence.com/chemical/21653-20-3/ EPA CompTox (DSSTox): 21653-20-3. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID80885170 EPA TSCA Inventory: CAS 21653-20-3. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 290619 for CAS 21653-20-3. Reporting year: 2024. https://usatrade.census.gov/