2-Methyl-1-propene, pentamer

CAS 42278-27-3

Companies reported imports and no US production of this chemical to EPA for 2023.

US productionZero

Import volume114.8K lb

Import dependency100%

Top sourceNo public record

Production is reported production, not a complete census of factories. Production reporting year: 2023.

Where It Comes From

EPA reports by year

2023: US production Zero · Imports 114.8K lb
2019: US production Zero · Imports 118.3K lb

EPA-registered importers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Ineos Oligomers

Why It Matters

Sectors

Core Chemicals

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

Industrial Uses

•Intermediate in Petrochemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.46/gSigma-Aldrich (Rush Stock)

CountryGermany

Pack$1653.88 / 3.6 kg

Purity99.5%

Vendors3 available

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

2 more vendors

Vendor	Country	$/g	Pack	Purity
Sigma-Aldrich	Germany	$0.46	3.6 kg	99.5%
Labotest KG	Germany	$453.00	1000 mg	90%

Chemical Identity

CAS42278-27-3

PubChem CID8255

DTXSIDDTXSID801037400

FormulaC4H8

Mol. Weight56.11 g/mol

SMILESCC(=C)C

Data Sources

EPA CompTox (DSSTox) · DTXSID801037400Retrieved 2026-04-06
PubChem · compound 8255Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

← Back to Dashboard ← Back to Core Chemicals

Brief citations

2-Methyl-1-propene, pentamer (CAS 42278-27-3) https://chemicalindependence.com/chemical/42278-27-3/ EPA CompTox (DSSTox): DTXSID801037400. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID801037400 PubChem: 8255. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/8255 EPA Chemical Data Reporting: 42278-27-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 42278-27-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting