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SITCSection 5
U.S. imports of nitrile-function compounds (nes) (SITC 51484) totaled $16.3M in April 2026, traded with 19 countries.
Importers of Nitrile-Function Compounds (NES) paid $2.1M in duties in April 2026 — an effective duty rate of 17% on $12.3M in dutiable value, based on actual customs collections rather than the published tariff schedule. Nitrile-Function Compounds (NES) imports of $16.3M in April 2026 ran 28% below the year-to-date monthly average of $22.6M.
Last updated: April 2026 dataNitrile-function compounds not elsewhere specified cover a chemically diverse set of organic nitriles — excluding acrylonitrile, which has its own dedicated heading — used as solvents, pharmaceutical intermediates, agrochemical precursors, and specialty polymer building blocks. Acetonitrile and propionitrile are among the more commercially significant members of this residual grouping, with acetonitrile widely used as an HPLC solvent in pharmaceutical quality-control laboratories. Correct classification requires confirming the compound is not captured by a more specific nitrile provision, and importers should provide CAS numbers and structural documentation to support entry.
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Acetonitrile, a widely used laboratory and pharmaceutical solvent, is among the nitrile-function compounds that may fall under this residual heading when not covered by a more specific provision. Importers sourcing from countries subject to Section 301 measures should verify whether their specific HTS subheading is covered, as Section 301 exposure varies by tariff line and origin.
A certificate of analysis including the CAS registry number, IUPAC name, structural formula, and purity specification is the most effective supporting document. For novel or uncommon nitriles, a CBP binding ruling provides classification certainty and reduces the risk of a CF-28 request or post-entry audit.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CHINA | $7.4M | $7.1M | -$362K |
| UNITED KINGDOM | $4.1M | $3K | -$4.1M |
| CANADA | $23K | $2.8M | +$2.7M |
| BRAZIL | -- | $2.5M | +$2.5M |
| INDIA | $1.3M | $262K | -$1.0M |
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Monthly import values over time