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1,4-Benzenedicarbonyl dichloride

CAS 100-20-9

Also registered as 5 other CAS numbers

106158-15-0 · 108454-76-8 · 188665-55-6 · 1640987-72-9 · 1927884-58-9

1,4-Benzenedicarbonyl dichloride chemical structure

Concern score

Not assessed — no hazard data yet.

1,4-Benzenedicarbonyl dichloride in plain language

What it is

Also known as Terephthaloyl chloride · Benzene-1,4-dicarbonyl dichloride · P-phenylenedicarbonyl dichloride · P-phthaloyl chloride · P-phthaloyl dichloride · benzene-1,4-dicarbonyl chloride

Show all 20 names

1,4-Benzenedicarbonyl chloride · 1,4-Bis(chlorocarbonyl)benzene · 1,4-Di(chlorocarbonyl)benzene · 1,4-phthaloyl dichloride · Benzene 1,4-dicarboxylic acid dichloride · Dichlorure de terephtaloyle · Terephthalic acid dichloride · Terephthalic dichloride · Terephthaloyl dichloride · Terephthalic acid chloride · Terephthalyl dichloride · dicloruro de tereftaloilo · p-Phthalyl dichloride · terephthaloyl chloride (99+%)

What it does

We don't have a plain-language description for 1,4-Benzenedicarbonyl dichloride yet.

Recorded functional uses: Flame retardant · Heat stabilizer

Is it a concern?
We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. 1,4-Benzenedicarbonyl dichloride appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • USEPAcommercial use observedEPA CPDat observed this chemical in 1 composition records across product categories including Laboratory supplies. EPA CPDat classifies this chemical for functional uses including Heat stabilizer, Flame retardant.
    • EPA CPDat observed this chemical in 1 composition records across product categories including Laboratory supplies. EPA CPDat classifies this chemical for functional uses including Heat stabilizer, Flame retardant.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Evidence & sources

No graded research studies for 1,4-Benzenedicarbonyl dichloride yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

5 data sources

Where this comes from

  • EPA Chemical and Products Database

    exposure · updated 2019-05-01

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →
  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed 1,4-Benzenedicarbonyl dichloride in a product composition. These are source records, not Greenveil catalog products.

Source records

1

Named organisations

2

Laboratory supplies

Typical roles

Flame retardantHeat stabilizer
See products using 1,4-Benzenedicarbonyl dichloride →