N-Phenylmaleimide
N-Phenylmaleimide is a cyclic imide with carboxyimide-function, but classified here under imine derivatives per Chapter Note 3 (last in numerical order) in HTS 2925.29.90.00. Key Diels-Alder dienophile.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified strictly as imide-function compound
Carboxyimide-function compounds if imide > imine chemically principal.
If ring system predominates
Nucleic acids if classified by heterocyclic structure rather than acyclic function.
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
• Submit X-ray crystal structure confirming planar imide ring system
• Declare melting point (88-92°C) and purity by HPLC (>99%)
• Include polymerization inhibitor (hydroquinone) concentration
Related Products under HTS 2925.29.90.00
Benzylideneaniline
Benzylideneaniline is a Schiff base formed by the condensation of benzaldehyde and aniline, classified as an imine-function compound under HTS 2925.29.90.00. It serves as an intermediate in organic synthesis and ligand in coordination chemistry.
N-Benzylidenebenzylamine
N-Benzylidenebenzylamine is an imine derivative synthesized from benzaldehyde and benzylamine, falling under imines and their derivatives in HTS 2925.29.90.00. Used in pharmaceutical synthesis and as a protecting group reagent.
N-Salicylideneaniline
N-Salicylideneaniline is a photochromic Schiff base imine with salicylaldehyde and aniline, classified under HTS 2925.29.90.00 as an imine derivative. Applications include molecular switches and sensors.
N-(4-Dimethylaminobenzylidene)aniline
This push-pull Schiff base imine features dimethylamino donor and imine acceptor groups, classified under HTS 2925.29.90.00. Used in nonlinear optics and dye chemistry.
Furfural Aniline
Furfural aniline is a heterocyclic imine formed from furfuraldehyde and aniline, falling under other imine derivatives in HTS 2925.29.90.00. Used in polymer chemistry and corrosion inhibition.
p-Chlorobenzylideneaniline
p-Chlorobenzylideneaniline is a halogenated Schiff base imine used in pesticide synthesis, classified under HTS 2925.29.90.00 per Chapter 29 notes on halogenated derivatives.