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HSChapter 29
U.S. imports of other organo-nitrogen compounds (nesoi) (HS 292990) totaled $13.8M in April 2026, traded with 17 countries.
Importers of Other Organo-Nitrogen Compounds (NESOI) paid $1.9M in duties in April 2026 — an effective duty rate of 14% on $13.3M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataClassified as a residual catch-all within Chapter 29, this heading captures organo-nitrogen compounds not elsewhere specified, including cyanate esters, phosphoramidic derivatives, and several Schedule 1 and Schedule 2 chemical precursors subject to strict import controls under the Chemical Weapons Convention. The US tariff schedule subdivides the heading into aromatic and non-aromatic compounds, with dedicated lines for phosphoramidic dihalides (2929905015, 2929905018) and phosphoramidate esters (2929905020) that trigger heightened scrutiny. Germany and China are the leading suppliers, with India and South Korea also significant sources for specialty intermediates used in agrochemical and pharmaceutical synthesis.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Several non-aromatic phosphoramidic derivatives classified here — including N,N-dialkyl phosphoramidic dihalides and dialkyl phosphoramidates — are Schedule 2 or Schedule 3 chemicals under the Chemical Weapons Convention. US importers may need to file declarations with the Commerce Department's Bureau of Industry and Security (BIS) and comply with the Chemical Weapons Convention Regulations (CWCR) prior to entry.
The US schedule separates aromatic compounds (those with a benzene or similar ring structure, such as 2929900500 and 2929902000) from non-aromatic aliphatic derivatives. This distinction affects both the applicable duty rate and, in some cases, whether the compound falls under specific chemical controls. Importers should confirm the structural classification with a chemist or customs specialist before filing.
Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2929905095 | COMPOUNDS WITH OTHER NITROGEN FUNCTION, NESOI | $8.8M | 6.60% | $555K |
| 2929901500 | OTHER AROM CMPDS WTH OTH NITRO FUNC OF PROD ETC | $4.2M | 29.35% | $1.2M |
| 2929900500 | 2,2-BIS(40CYANATOPHENYL)-1,1,1,3,3,3,-HEXAFLUOROPR | $702K | 10.00% | $70K |
| 2929902000 | OTHER AROM CMPDS NITRO FUNC ETC(EX PRODUCTS ETC) | $102K | 36.76% | $10K |
COMPOUNDS WITH OTHER NITROGEN FUNCTION, NESOI
OTHER AROM CMPDS WTH OTH NITRO FUNC OF PROD ETC
2,2-BIS(40CYANATOPHENYL)-1,1,1,3,3,3,-HEXAFLUOROPR
OTHER AROM CMPDS NITRO FUNC ETC(EX PRODUCTS ETC)
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2929909095 | COMPOUNDS WITH OTHER NITROGEN FUNCTION, NESOI | $14.0M |
| 2929905015 | N,N-DIMETHYLPHOSPHORAMIDIC DICHLORIDE | $4K |
| 2929905018 | N,N-DIALKYL PHOSPHORAMIDIC DIHALIDES, NESOI | $0 |
| 2929905020 | DIALKYL-N,N-DIALKYL PHOSPHORAMIDATES | $0 |
| 2929905040 | O-ALKYL(H OR<=C10,INC CYCLOALKYL)N-(DIALKYL(<=C10 | $0 |
COMPOUNDS WITH OTHER NITROGEN FUNCTION, NESOI
963.2K kg
N,N-DIMETHYLPHOSPHORAMIDIC DICHLORIDE
42 kg
N,N-DIALKYL PHOSPHORAMIDIC DIHALIDES, NESOI
DIALKYL-N,N-DIALKYL PHOSPHORAMIDATES
O-ALKYL(H OR<=C10,INC CYCLOALKYL)N-(DIALKYL(<=C10
NUCLEIC ACIDS & SALTS; OTHER HETEROCYCLIC CMP, NES
HS 293499
HETEROCYCLIC COMP W NITROGEN HETERO-ATM ONLY NESOI
HS 293399
POLYPEPTIDE PROTEIN& GLYCOPROTEIN HORMONES &DERIV
HS 293719
CMPDS CONT AN UNFUSED PYRIDINE RING ETC NESOI
HS 293339
COMP WITH PYRIMIDINE OR PIPERAZINE RING, NESOI
HS 293359
ANTIBIOTICS, NESOI
HS 294190
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| State | Imports | Exports | Balance |
|---|---|---|---|
| California | $261K | $8.4M | +$8.2M |
| Texas | $3.4M | $1.8M | -$1.6M |
| Missouri | $3.4M | $71K | -$3.4M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| WILMINGTON, NC | $3.1M | $7.4M | +$4.2M |
| HOUSTON, TX | $4.7M | $2.4M | -$2.3M |
| LOS ANGELES, CA | $2.3M | $411K | -$1.9M |