U.S. imports of Acyclic Monoamines & Their Derivatives and Salts (SITC 51451) totaled $21.6M in August 2026, imported from 27 countries.
Importers of Acyclic Monoamines & Their Derivatives and Salts paid $1.8M in duties in August 2026, an average duty rate of 8.56% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Acyclic Monoamines & Their Derivatives and Salts imports of $21.6M in August 2026 ran 24% above the year-to-date monthly average of $17.4M.
Last updated: August 2026 dataAcyclic monoamines — open-chain compounds bearing a single amine group — serve as foundational building blocks in the manufacture of surfactants, rubber chemicals, corrosion inhibitors, and pharmaceutical intermediates. The commercial breadth of this category ranges from simple methylamine and ethylamine to longer-chain fatty amines used in fabric softeners and flotation agents. Importers should be aware that certain acyclic monoamine derivatives sourced from China may be subject to Section 301 additional duties, making origin documentation and precise chemical identification critical at entry.
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324 import shipments a month
Key demand sectors include agrochemicals (herbicide synthesis), personal care (fatty amine-based surfactants), rubber processing (accelerators and antioxidants), and water treatment chemicals. The specific amine chain length and degree of substitution largely determine which end-use sector a shipment serves.
Salts of acyclic monoamines are explicitly included in this SITC heading alongside the free base and derivatives. However, at the HTS 10-digit level, the salt form may carry a distinct tariff line from the free amine, so importers should confirm the exact chemical form with their customs broker to ensure correct classification.
Basic heading 165 of 465 in section 5
Basic heading 51451 · $21.6M of $27.5B
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Imports · August 2026
origin
China and Indonesia together supply 68% of it. Philippines pays 18.7% duty; Mexico 0.0%.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$21.6MYoY · free account
Exports
$12.4MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $192.0M of Acyclic Monoamines & Their Derivatives and Salts and exported $128.8M.
Through August 2026. Source: U.S. Census Bureau.