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HSChapter 29
U.S. exports of dinoseb (iso) and its salts (HS 290891) totaled $101K in June 2026, traded with 1 country.
Dinoseb (2-sec-butyl-4,6-dinitrophenol) is a nitrophenolic herbicide and contact pesticide whose US EPA registration was cancelled in 1986 due to reproductive toxicity concerns, making commercial import for domestic agricultural use effectively prohibited. The sole recorded US import source is the United Kingdom, suggesting any trade activity relates to research, reference standards, or re-export rather than domestic end-use application. All forms enter under the single 10-digit line 2908910000. Importers should consult EPA and CBP before attempting any entry, as admissibility is tightly constrained by the cancelled registration status.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
No. EPA cancelled all US registrations for dinoseb in 1986 due to reproductive and developmental toxicity. Import for domestic agricultural application is not permitted. Any import — for example, for laboratory reference standards or re-export — requires prior coordination with EPA and CBP to confirm admissibility.
A research or reference-standard import would typically require documentation establishing the non-commercial, non-agricultural end use, an EPA exemption or research authorization if applicable, and a TSCA Section 13 certification. Given the cancelled registration status, importers should obtain a binding guidance from both agencies before shipment.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| BELGIUM | -- | $101K | +$101K |
| SINGAPORE | -- | -- | -- |
| UNITED KINGDOM | -- | -- | -- |
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share |
|---|---|---|---|---|
| 2908910000 | DINOSEB (ISO) AND ITS SALTS | $0 | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2908910000 | DINOSEB (ISO) AND ITS SALTS | $101K |
NUCLEIC ACIDS & SALTS; OTHER HETEROCYCLIC CMP, NES
HS 293499
POLYPEPTIDE PROTEIN& GLYCOPROTEIN HORMONES &DERIV
HS 293719
CMPDS CONT AN UNFUSED PYRIDINE RING ETC NESOI
HS 293339
BENZENE
HS 290220
HETEROCYCLIC COMP W NITROGEN HETERO-ATM ONLY NESOI
HS 293399
HETEROCYCLIC COMP WITH UNFUSED PYRAZOLE RING NESOI
HS 293319
| Port | Imports | Exports | Balance |
|---|---|---|---|
| MOBILE, AL | -- | $101K | +$101K |
| HOUSTON, TX | -- | -- | -- |