tert-Butyl Peroxybenzoate
An aromatic ether peroxide used as a curing agent in polyester resins and rubber vulcanization. Classified under HTS 2909.60.20.00 due to its aromatic structure with ether-peroxide functionality. Meets Chapter 29 requirements for chemically defined organic peroxide derivatives.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If benzoate ester function considered principal
Unsaturated acyclic monocarboxylic acid esters heading applies if ester characteristic dominates per Chapter 29 note on oxygen functions.
If imported as reaction initiator in bulk packaging
Catalyst preparations excluded from Chapter 29; may classify under Chapter 38 if presented as formulated initiator.
If non-aromatic isomer or derivative
Aliphatic ketone/ether peroxides have separate subheading; structure determines aromatic vs non-aromatic classification.
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Import Tips & Compliance
• Classify based on predominant aromatic peroxide structure; provide NMR/GC certificates confirming chemical identity
• Use temperature-controlled shipping containers as peroxides decompose above 30°C; declare self-accelerating decomposition temperature (SADT)
• Check for anti-dusting agents; additions per Chapter 29 note (g) allowed only if not rendering product for specific use
Related Products under HTS 2909.60.20.00
Cumene Hydroperoxide
Cumene hydroperoxide is an aromatic ketone peroxide used primarily as an initiator in polymerization reactions for producing polystyrene and other resins. It falls under HTS 2909.60.20.00 as an aromatic ketone peroxide, chemically defined with the peroxide group characteristic of this heading. The 'Other' subheading applies since it is not specifically enumerated elsewhere in the aromatic peroxides category.
p-Menthane Hydroperoxide
Aromatic ketone hydroperoxide derived from p-cymene, used in silicone rubber curing and paint driers. Falls under HTS 2909.60.20.00 as an 'Other' aromatic peroxide meeting Chapter 29 chemically defined compound criteria. The aromatic ring structure qualifies it for this specific subheading.
Benzyl tert-Butyl Ether Peroxide
Aromatic ether peroxide used in low-temperature polymerization initiators. HTS 2909.60.20.00 classification reflects its aromatic ether-peroxide structure as a chemically defined derivative per Chapter 29 scope. 'Other' category captures specialized industrial peroxides.
Di(cumyl) Peroxide
Bis(1-methyl-1-phenylethyl) peroxide, an aromatic dialkyl peroxide used in crosslinked polyethylene production. Classified HTS 2909.60.20.00 as aromatic ketone peroxide derivative, chemically defined organic compound per Chapter 29 note (a). High-purity technical grade qualifies.