4-Nitrophthalimide
A nitro-substituted aromatic imide used in dye synthesis and as a pharmaceutical intermediate. Falls under HTS 2925.19.42.00 as an aromatic imide derivative (nitro group permitted per Chapter notes). Chemically defined per Chapter 29 note (a).
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If primarily considered o-nitroaniline derivative
Amine-function compounds with nitro groups classified by amine function per Chapter note on compound derivatives
If for sulfonated/nitrated derivatives exceeding imide function
Halogenated/nitrated derivatives classified by substituent if dominant per Chapter 29 note 4
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Import Tips & Compliance
• Include nitro compound handling certifications; test for nitroso impurities (may affect 2929 classification); declare exact substitution position via NMR data
Related Products under HTS 2925.19.42.00
Phthalimide
Phthalimide is an aromatic cyclic imide derived from phthalic anhydride, used primarily as an intermediate in organic synthesis for pharmaceuticals and agrochemicals. It falls under HTS 2925.19.42.00 as an aromatic imide compound other than saccharin. This chemically defined organic compound conforms to Chapter 29 note (a) for separate organic compounds.
N-Phthalyl-L-Glutamic Anhydride
This aromatic imide derivative serves as a key intermediate in peptide synthesis and pharmaceutical production. Classified under HTS 2925.19.42.00 as an aromatic imide other than saccharin. Its carboxyimide-function structure matches Chapter 29 heading 2925 requirements.
Succinimide
Succinimide is a five-membered ring aromatic imide used in pharmaceutical synthesis and as a polymer modifier. Classified in HTS 2925.19.42.00 as 'other' aromatic imide. Its cyclic imide structure qualifies under heading 2925 per Chapter 29 definitions.
N-Bromosuccinimide (NBS)
N-Bromosuccinimide is an aromatic brominated imide widely used as a brominating and oxidizing reagent in organic synthesis. HTS 2925.19.42.00 covers this as an 'other' aromatic imide derivative. Bromine substitution permitted per Chapter 29 notes on derivatives.
Maleimide
Maleimide is an α,β-unsaturated aromatic imide used in polymer chemistry and pharmaceutical conjugation reactions. Falls under HTS 2925.19.42.00 as aromatic imide 'other'. Unsaturated imide function clearly within heading 2925 scope.
Glutarimide
Glutarimide is a six-membered ring aromatic imide used in pharmaceutical intermediates and as a hypnotic drug precursor. Classified HTS 2925.19.42.00 as aromatic imide other than saccharin. Chemically defined cyclic imide per Chapter 29.