Cyclopentane, methylene-

U.S. production volumes are classified as confidential business information.

US ProductionCBI

Import Value$90M

Import VolumeZero

Top SourceJapan 21%

The EPA did not publish how much of this chemical companies made or imported, or marked that amount confidential. Without that volume, ACID cannot calculate import dependency.

Where It Comes From

Customs basis: HS 290219 · basket

These shares come from HS customs code 290219, which covers 43 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.

Source Countries

JP 21%JapanBR 12%BrazilTW 12%TaiwanKR 11%South KoreaDE 9%Germany

EPA-registered manufacturers (2)

Sasol · ZA South Africa

Sasol Chemicals (Usa)

Why It Matters

Sectors

Metals & MiningPlastics & RubberCore Chemicals

Downstream UsesNo data available

FDA Shortage Status

No FDA shortage records

Industrial Uses

Used in 3 sectors as 3 functional roles.

•Intermediate in All Other Basic Organic Chemical Manufacturing (50%)Processing as a reactant
•Monomers in Plastics Material and Resin Manufacturing (20%)Processing as a reactant
•Fuel in Other (40%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$64.00/gCombi-Blocks, Inc.

CountryUnited States

Pack$320.00 / 5 g

Purity98%

Vendors5 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

4 more vendors

Vendor	Country	$/g	Pack	Purity
A2B Chem LLC	United States	$68.80	5 g	95%
AA BLOCKS	United States	$72.60	5 g	95%
AstaTech, Inc	United States	$180.00	250 mg	95%
Angene International Limited	United States	$260.00	1 g	95%

Chemical Identity

CAS1528-30-9

PubChem CID73714

DTXSIDDTXSID9061756

FormulaC6H10

Mol. Weight82.14 g/mol

SMILESC=C1CCCC1

Data Sources

DTXSID90617562026-04-06

https://doi.org/10.23645/epacomptox.5588566

Archive: data/sources/comptox/dsstox_identifiers.csv

737142026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/73714/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/73714.json

1528-30-92026-04-24

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr.csv

CAS 1528-30-92026-04-25

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr_industrial.csv

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