An aromatic diamine intermediate used primarily in the synthesis of dyes, pigments, and specialty polymers, 1,8-diaminonaphthalene (also catalogued as 1,8-naphthalenediamine) enters US commerce under HTS 2921590400 within the broader aromatic polyamine chapter. Its classification as an amine-functional aromatic compound means it may be subject to EPA Toxic Substances Control Act (TSCA) review requirements at entry. Importers should verify TSCA compliance status and any applicable Section 301 tariff exposure before shipment.
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Importers must confirm TSCA compliance with the EPA, as aromatic amines are subject to chemical substance inventory and import certification requirements. Classification under HTS 2921590400 should be verified with a licensed customs broker given the specificity of aromatic polyamine subheadings.
It serves as a chemical building block in the manufacture of dyes, fluorescent compounds, and high-performance polymers. Its dual amine groups make it valuable for condensation reactions in specialty chemical and materials science applications.
Statistical number 9 of 9 in subheading 292159
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Imports · August 2026
origin
customs district
None recorded for this period.
destination
Census publishes state breakdowns to the 6-digit level only. See HS 292159 for those.
entry
Census publishes port breakdowns to the 6-digit level only. See HS 292159 for those.
rate provision · imports
None recorded for this period.
Imports
Imports
—YoY · free account
Low of 2 reported months · imports
Low · free accountFewer than 6 of the last 12 months reported trade, or the latest month was under $500K; the trend chart is not shown for thin series.
Through August 2026 · imports 2 of 12 months reported. Source: U.S. Census Bureau.