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Phenylacetylene

CAS 536-74-3

Benzene, ethynyl-

Molecular structure of 536-74-3
US productionNot reported
Import value, 2024$68M
Top sourceIndia 35%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

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 290290 · basket

These shares come from HS customs code 290290, which covers 171 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IN 35%IndiaTW 11%TaiwanES 10%SpainDE 10%GermanyCN 8%China

Why It Matters

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

Vendor Pricing

$0.20/gManchester Organics
CountryUnited Kingdom
Pack$49.36 / 250 g
Purity95%
Vendors9 available

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

8 more vendors
VendorCountry$/gPackPurity
Apollo Scientific UKUnited Kingdom$0.70500 g95%
Fluorochem UKUnited Kingdom$0.86100 g98%
Combi-Blocks, Inc.United States$0.96500 g97%
AA BLOCKSUnited States$0.99100 g97%
A2B Chem LLCUnited States$1.02500 g97%
Fluorochem EUGermany$1.0625 g98%
ALFA AESARGermany$1.26100 g98%
AstaTech, IncUnited States$2.4025 g95%

Chemical Identity

CAS536-74-3
PubChem CIDNot recorded
DTXSIDDTXSID1060211
FormulaC8H6
Mol. Weight102.136 g/mol
SMILESC#CC1=CC=CC=C1

Data Sources

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Brief citations

Phenylacetylene (CAS 536-74-3) https://chemicalindependence.com/chemical/536-74-3/ EPA TSCA Inventory: CAS 536-74-3. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 290290 for CAS 536-74-3. Reporting year: 2024. https://usatrade.census.gov/