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Compound record

Tetrabromophthalic anhydride

Also known as PHT 4

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

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

Alternatives view

Substitutes, analogues, and neighbouring substances

Lower pressure

8 possible substitute candidates

These neighbors share use context and are not currently tagged in the generated inventory as Candidate List substances.

Regulatory peers

5 nearby watched substances

Use these to understand what else is moving under similar monitoring pressure.

Class neighbors

6 same-class analogs

These share class context and help structure substitution or watchlist work.

Potential substitutes

Lower-pressure neighbors first

CompoundShared contextWhy it mattersRoutes
Ethylene bis(tetrabromophthalimide) flame retardant Potential lower-pressure neighbor in the same flame-retardant use context.
Hexabromocyclododecane flame retardant Potential lower-pressure neighbor in the same flame-retardant use context.
9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide flame retardant, reactive Potential lower-pressure neighbor in the same flame-retardant use context.
2,2-bis(chloromethyl)propane-1,3-diyl tetrakis(2-chloroethyl) bis(phosphate) flame retardant Potential lower-pressure neighbor in the same flame-retardant use context.
Aluminum diethylphosphinate flame retardant Potential lower-pressure neighbor in the same flame-retardant use context.
Aluminum hydroxide flame retardant Potential lower-pressure neighbor in the same flame-retardant use context.
Antimony trioxide flame retardant Potential lower-pressure neighbor in the same flame-retardant use context.
Bis(2,3-dibromopropyl) phosphate flame retardant Potential lower-pressure neighbor in the same flame-retardant use context.

Regulatory peers

Nearby substances already under pressure

CompoundShared classShared tagsRoutes
Tetrabromobisphenol A aromatic brominated flame retardant flame retardant, reactive
1,2-Bis(2,4,6-tribromophenoxy)ethane aromatic brominated flame retardant flame retardant
Decabromodiphenyl ethane aromatic brominated flame retardant flame retardant
Decabromodiphenyl ether aromatic brominated flame retardant flame retardant
diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide nearby class flame retardant

Same-class neighborhood

Class-level analogs