Harmonized Tariff Schedule of the U.S. › Chapter 29 Organic chemicals
2912.19.40.00Tariff line
Classification path
Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde
2912
Acyclic aldehydes without other oxygen function
Other
Other
Isobutanal
2912.19.40.00
Rates of duty
General rate (Column 1)5.5%
SpecialFree (A, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Column 261.5%
Unitkg
Free (A, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Printed page 1457
Measure flags
for origin CN, entry date 2026-10-26 · base rate 5.5%
- Section 301 forced-labor tariff (12.5%)9903.05.31Applies+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 4B (9903.88.16, suspended)9903.88.16Suspended+15% (suspended)List 4B is suspended indefinitely; not collected
- PGAEPA EP7
Confirmed total 18% · max 18%Full duty breakdown →