Sourcing N-ethyl o-toluenesulphonamide from China
N-Ethyl ortho-toluenesulphonamide needs its identity checked against the toluenesulphonamide tariff line, with 0% to 6% duty depending on suspension eligibility. GB importers must assess UK REACH registration and chemical classification. Cambridge China Bridge sources N-Ethyl ortho-toluenesulphonamide.
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Duty and the toluenesulphonamide suspension
Read from the UK Trade Tariff on 5 October 2026, heading 2935 covers sulphonamides. The relevant named line is 2935 90 90 20, toluenesulphonamides. Confirm that your N-ethyl ortho-toluenesulphonamide belongs there using its chemical identity and composition. Only this line in the supplied facts is relevant to this guide.
The line shows 6% duty for goods from China and an autonomous suspension to 0%. The suspension excludes mixtures, preparations and products made up of different components containing these substances. No anti-dumping or countervailing measure is recorded. The tariff also attaches dangerous-chemical export and waste export controls. Ask your customs broker to confirm their relevance and any requirements for the consignment; these entries do not establish an import prohibition for this product.
Confirm the commodity code and suspension eligibility before shipment. The ortho compound, para compound and a formulated blend should have clearly distinguished specifications. For the related product within this heading, see N-ethyl para-toluenesulphonamide.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Toluenesulphonamides: confirm classification of N-ethyl ortho material | 2935 90 90 20 | 6% | None |
Specify the ortho identity and impurity profile
Write the full chemical name and chemical identity in the purchase specification. State whether you want the ortho substance alone rather than an ortho/para blend. Agree assay, the method for distinguishing isomers, related substances, water content, residual solvents, appearance and packaging. Ask for a batch certificate of analysis and a safety data sheet matching the material offered.
For Great Britain, confirm the applicable UK REACH registration threshold and any exemptions with HSE for your intended imports. Registration is assessed per substance and legal entity. Chemical classification is the supplier's responsibility, including importers; classification and labelling must be handled by someone with scientific competence. Settle this route before ordering, alongside testing and certification.
Worked duty example
Illustrative example, not a quote: Illustrative trial batch of N-ethyl ortho-toluenesulphonamide in sealed drums under 2935 90 90 20, invoiced at £3,000 free on board, with £980 of freight and insurance to the UK. The customs value is £3,980. Duty at 6% is £238.80. Import VAT at 20% is charged on the customs value plus duty, £4,218.80, so it is £843.76. Import taxes total £1,082.56; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £238.80 of duty. The import duty and VAT guide explains each step.
Inspection checklist
Identity: match the purchase specification, certificate of analysis, safety data sheet and drum labels to the N-ethyl ortho compound.
Analysis: independently sample the delivered batch and check assay, the ortho/para profile, water and residual solvents against the agreed specification.
Packing: inspect seals, closures, leaks, contamination and batch markings; reconcile the drums with the packing list.
Documents: check the classification review, UK REACH route and evidence supporting any suspension claim. Use the quality inspection guide to agree sampling and reporting.
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What goes wrong
A specification that says only 'ethyl toluenesulphonamide' can leave room for the para compound or an isomer blend. An overall assay result does not resolve that ambiguity unless the method distinguishes the components. Agree the identity test and impurity reporting before approving the production sample.
Another failure is treating a suspension on the named substance as relief for any formulation containing it. Check the actual composition against the suspension exclusion. Keep a batch with mismatched identity, damaged packaging or inconsistent documents separate until the discrepancy is resolved.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For repeat volumes, see container programmes.
Frequently asked questions
What is the UK import duty on N-ethyl ortho-toluenesulphonamide from China?
The toluenesulphonamide line shows 6% duty with a conditional 0% suspension. Confirm classification under 2935 90 90 20; the suspension excludes mixtures, preparations and multicomponent products.
Is N-ethyl ortho-toluenesulphonamide the same as the para compound?
Treat them as distinct purchasing specifications. Require an identity test that distinguishes the ortho material from the para material and reports any isomer blend.
Do I need UK REACH registration for this chemical?
For Great Britain, confirm the applicable UK REACH registration threshold and any exemptions with HSE. Assess your route for the specific substance and importing legal entity before ordering.
What should I ask the Chinese factory to supply?
Ask for the chemical identity, agreed isomer specification, batch certificate of analysis, matching safety data sheet, analytical methods and packaging details. Verify the delivered batch against these records.