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1-Butene, 1-bromo-

CAS 31844-98-1

Molecular structure of 31844-98-1
US productionNot reported
Import value, 2024$18M
Top sourceChina 42%

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 290369 · basket

These shares come from HS customs code 290369, which covers 96 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 42%ChinaIN 19%IndiaIT 14%ItalyIL 13%IsraelNL 9%Netherlands

Why It Matters

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

Chemical Identity

CAS31844-98-1
PubChem CIDNot recorded
DTXSIDDTXSID8067650
FormulaC4H7Br
Mol. Weight135.004 g/mol
SMILESCCC=CBr

Data Sources

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Brief citations

1-Butene, 1-bromo- (CAS 31844-98-1) https://chemicalindependence.com/chemical/31844-98-1/ EPA TSCA Inventory: CAS 31844-98-1. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 290369 for CAS 31844-98-1. Reporting year: 2024. https://usatrade.census.gov/