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Trans-1,4-Dichloro-2-Butene

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CAS Number: 110-57-6

Trans-1,4-Dichloro-2-Butene (CAS 110-57-6) is a chemical tracked by the EPA Toxics Release Inventory (TRI) program under Section 313 of the Emergency Planning and Community Right-to-Know Act. The TRI requires industrial facilities above specified threshold quantities to disclose annual manufacturing, processing, and otherwise-used volumes, along with quantities released to air, water, land, and off-site transfers.

Across the United States, 2 facilities have filed TRI Form R disclosures for Trans-1,4-Dichloro-2-Butene, with a cumulative reported release volume of 51 lbs. The chemical is not flagged as a carcinogen in the TRI classification set. The largest individual disclosure in the current dataset comes from WESTLAKE VINYLS INC in KY at 32 lbs.

TRI volumes are self-reported estimates, not measured stack emissions, and each pound counts equally regardless of chemical toxicity, so total pounds should not be equated with total risk. Inclusion of a chemical or facility in the TRI does not itself establish a health hazard; it documents the public right-to-know record. Consult EPA's IRIS (Integrated Risk Information System) and the Agency for Toxic Substances and Disease Registry for health-effect summaries.

Release Summary

Total Releases
51 lbs
Number of Facilities
2
Carcinogen
No
Persistent Bioaccumulative Toxicant
No

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Trans-1,4-Dichloro-2-Butene. Up to 50 shown.

# Facility Release (lbs)
1 Westlake Vinyls Inc 32 lbs
2 Veolia Es Technical Solutions LLC Port Arthur Facility 19 lbs

Frequently Asked Questions

What is Trans-1,4-Dichloro-2-Butene? ▼
Trans-1,4-Dichloro-2-Butene (CAS Number: 110-57-6) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. 2 facilities in the United States report releasing this chemical to the EPA.
How much Trans-1,4-Dichloro-2-Butene is released in the U.S.? ▼
U.S. facilities have reported a total of 51 lbs of Trans-1,4-Dichloro-2-Butene releases to the EPA Toxic Release Inventory across 2 facilities. Release quantities are self-reported estimates. This includes releases to air, water, land, and off-site transfers.
Is Trans-1,4-Dichloro-2-Butene harmful to health? ▼
Trans-1,4-Dichloro-2-Butene is not classified as a carcinogen in the EPA TRI database. Health effects depend on exposure levels, duration, and route. For specific health questions, consult a toxicologist or your local health agency.
Which facilities release the most Trans-1,4-Dichloro-2-Butene? ▼
The largest reported releasers of Trans-1,4-Dichloro-2-Butene include facilities across multiple states. Release data is self-reported annually to the EPA under the TRI program. View the full list of 2 facilities on this page.
What is the CAS number for Trans-1,4-Dichloro-2-Butene? ▼
The CAS (Chemical Abstracts Service) Registry Number for Trans-1,4-Dichloro-2-Butene is 110-57-6. CAS numbers are unique numerical identifiers assigned to every chemical substance described in the open scientific literature. This identifier is used to search scientific databases and regulatory filings.

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Health Information

Data comes from the EPA Toxic Release Inventory (TRI) program. Release quantities are self-reported by facilities and may represent estimates. The total shown aggregates reports across all facilities and reporting years.

PlainEnviro presents this data without advocacy framing. The presence of a chemical in the TRI database does not by itself indicate a health risk at current exposure levels. For health-related questions about specific chemical exposures, consult your local health agency or a toxicologist.

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Data sourced from the U.S. Environmental Protection Agency (EPA). See our methodology for details. Retrieved and formatted by PlainEnviro Editorial

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the EPA Toxic Release Inventory (TRI). Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.