PHT4-Diol (Dibromoneopentylglycol)
PHT4-Diol, synonymous with dibromoneopentylglycol, serves as a brominated diol crosslinker in intumescent coatings and epoxy systems for fire protection. Its placement in HTS 2905.59.30.00 reflects its status as a specifically enumerated halogenated acyclic alcohol per the tariff schedule.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If diluted in solvent for safety/transport per Chapter note (e)
Solutions in solvents, even for transport, classify as preparations if solvent renders it suitable beyond general chemical use.
If for non-brominated neopentylglycol analogs
Parent compound neopentylglycol without halogenation falls under non-halogenated acyclic diols.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Declare exact assay percentage; obtain TSCA approval for new uses
• Common pitfall: incorrect packing group assignment leading to shipping delays
Related Products under HTS 2905.59.30.00
Dibromoneopentylglycol (FR-513)
Dibromoneopentylglycol, chemically known as 2,2-bis(bromomethyl)-1,3-propanediol, is a halogenated acyclic alcohol used primarily as a reactive flame retardant in polyurethane foams and resins. It falls under HTS 2905.59.30.00 as a specific brominated derivative of neopentylglycol, an acyclic diol, meeting Chapter 29's criteria for chemically defined organic compounds with halogen directly linked to carbon.
Ixol B 251 Flame Retardant
Ixol B 251 is a commercial grade of dibromoneopentylglycol used as a reactive brominated flame retardant in rigid polyurethane foams for furniture and insulation. Classified under HTS 2905.59.30.00 due to its chemical identity as a dibrominated derivative of an acyclic alcohol, fitting Chapter 29 note (a) for separate chemically defined compounds.
FR-522 Dibromoneopentylglycol
FR-522 is a high-purity dibromoneopentylglycol variant employed as a reactive flame retardant in unsaturated polyester resins and coatings. It qualifies for HTS 2905.59.30.00 as a named halogenated derivative of acyclic alcohols, adhering to chapter provisions for chemically pure organic compounds.
Saytex RB 79 Flame Retardant
Saytex RB 79 is a trade name for dibromoneopentylglycol, a neopentyl glycol dibromide used in textile backcoatings and rigid foam applications as a reactive FR additive. HTS 2905.59.30.00 covers this exact compound as a halogenated derivative within the acyclic alcohols heading.