chem-data European chemical and regulatory registry

Compound record

Tetrabromophthalic anhydride

Also known as PHT 4

632-79-1 · aromatic brominated flame retardant · flame retardant

flame retardantreactive usepolyesters
Why monitored

Rationale behind the monitoring signal, not just the label.

Lookup labels

PHT 4 BromphthalFireMaster PHT 4Bromophthal
CAS 632-79-1
Formula C8Br4O3
Molecular weight 463.7 g/mol
InChIKey QHWKHLYUUZGSCW-UHFFFAOYSA-N

Why monitored

Why this substance is monitored in the EU

Tetrabromophthalic anhydride is currently surfaced as no current candidate list row imported in the EU.

The current imported view anchors this substance in CandidateList. The live rationale focuses on No positive Candidate List entry captured in the current imported source set, and this page is designed for fast status checks before deeper source review.

Rows behind the rationale

Imported framework context and legal signals

CandidateList 8 Mar 2026

No current Candidate List row imported

No positive Candidate List entry captured in the current imported source set

Open official source