4-Ethyloct-1-yn-3-ol

CAS 5877-42-9

EPA’s 2019 records show zero U.S. production of this chemical.

US productionZero

Import value, 2024$52M

Top sourceIndia 29%

EPA lists this chemical for 2019 but publishes zero or no volume for both production and imports.

Production is reported production, not a complete census of factories. Production reporting year: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 290529 · basket

EPA reports by year

2019: US production Zero · Imports Zero

These shares come from HS customs code 290529, which covers 116 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

IN 29%IndiaJP 27%JapanCN 15%ChinaCH 10%SwitzerlandDE 4%Germany

Canada
Spain
United Kingdom
Slovakia
Ukraine
Hong Kong
Greece
Russia
Sweden

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Basf

Why It Matters

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

Vendor Pricing

$4.80/gA2B Chem LLC

CountryUnited States

Pack$120.00 / 25 g

Purity97%

Vendors7 available

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

6 more vendors

Vendor	Country	$/g	Pack	Purity
Combi-Blocks, Inc.	United States	$4.80	25 g	97%
AA BLOCKS	United States	$5.60	25 g	97%
Aaron Chemicals LLC	Hong Kong	$32.80	5 g	95%
Angene Chemical	China → Hong Kong	$33.40	5 g	95%
AstaTech (2 weeks)	United States	$36.40	5 g	95%
Angene	China → Hong Kong	$4266.67	30 mg	95%

Chemical Identity

CAS5877-42-9

PubChem CID93012

DTXSIDDTXSID1044697

FormulaC10H18O

Mol. Weight154.25 g/mol

SMILESCCCCC(CC)C(C#C)O

Data Sources

EPA CompTox (DSSTox) · DTXSID1044697Retrieved 2026-04-06
PubChem · compound 93012Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

4-Ethyloct-1-yn-3-ol (CAS 5877-42-9) https://chemicalindependence.com/chemical/5877-42-9/ EPA CompTox (DSSTox): DTXSID1044697. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1044697 PubChem: 93012. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/93012 EPA Chemical Data Reporting: 5877-42-9. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290529 for CAS 5877-42-9. Reporting year: 2024. https://usatrade.census.gov/