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SITCSection 5
U.S. imports of butyric acids, valeric acids, their salts and esters (SITC 51375) totaled $4.3M in April 2026, traded with 20 countries.
Importers of Butyric Acids, Valeric Acids, Their Salts and Esters paid $565K in duties in April 2026 — an effective duty rate of 15% on $3.9M in dutiable value, based on actual customs collections rather than the published tariff schedule. Butyric Acids, Valeric Acids, Their Salts and Esters imports of $4.3M in April 2026 ran 23% above the year-to-date monthly average of $3.5M.
Last updated: April 2026 dataButyric acid and its derivatives — particularly sodium butyrate and tributyrin — have grown in commercial importance as gut-health additives in animal nutrition and as flavor compounds in food and fragrance manufacturing. Valeric acid and its esters serve as intermediates in pharmaceutical synthesis and as flavoring agents. The distinction between n-butyric acid and isobutyric acid (2-methylpropanoic acid) is commercially and regulatorily significant, as they carry different CAS numbers and may be classified at different HTS subheadings. Importers of butyrate salts intended for feed use should confirm applicable regulatory status with the relevant authority.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
N-butyric acid (straight-chain) and isobutyric acid (branched, 2-methylpropanoic acid) are structurally distinct compounds with different CAS numbers, end uses, and potentially different HTS subheadings. Importers must specify the correct isomer on commercial invoices and entry documents to avoid misclassification and potential customs delays.
Sodium butyrate and calcium butyrate marketed as feed additives may be subject to FDA Center for Veterinary Medicine review or APHIS oversight depending on their formulation and labeling claims. Importers should verify the regulatory status of the specific product with a licensed customs broker or regulatory consultant before the first shipment.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| SINGAPORE | -- | $5.0M | +$5.0M |
| NETHERLANDS | $137K | $3.0M | +$2.8M |
| BRAZIL | -- | $1.7M | +$1.7M |
| MEXICO | $496K | $1.1M | +$615K |
| SWEDEN | $1.4M | -- | -$1.4M |
Monthly import values over time