Sourcing diisopropylamine from China
Diisopropylamine from China carries 6% UK duty under the residual acyclic monoamine line, subject to classification confirmation. Named suspensions for other chemicals do not cover it. Before GB sale, check chemical classification, labelling and packaging responsibilities. Cambridge China Bridge sources diisopropylamine.
Diisopropylamine duty and classification
Read from the UK Trade Tariff on 1 October 2026, heading 2921 covers amine-function compounds. For neat diisopropylamine, the residual acyclic monoamine code to confirm is 2921 19 99 90, carrying 6% duty on Chinese-origin goods. No anti-dumping or countervailing measure is recorded for that line. The other table entries are classification comparisons, not alternative codes for the same substance.
The line has 0% suspensions restricted to named substances, including qualifying triethylamine and ethyldiisopropylamine. These do not name diisopropylamine. The tariff also attaches dangerous-chemical export and waste export controls. Confirm their relevance with your customs broker. In England, waste shipment controls apply only where the material is waste; confirm waste status separately for recovered or discarded material.
Confirm the commodity code using chemical identity, composition and whether the shipment is a neat substance, salt or formulation. Do not classify by a shortened supplier name. Our triethylamine and wider heading guide provides related context.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Diisopropylamine, subject to classification confirmation | 2921 19 99 90 | 6% | None |
| Diethylamine and its salts, for comparison | 2921 19 50 00 | 4% | None |
| Methylamine, dimethylamine and trimethylamine salts, for comparison | 2921 11 00 00 | 6% | None |
| Diisopropylaminoethylchloride hydrochloride, a different derivative | 2921 14 00 00 | 6% | None |
Specify diisopropylamine identity and batch quality
Write the full chemical identity into the purchase specification. Distinguish diisopropylamine from ethyldiisopropylamine and the separately named chlorinated derivative. Agree assay, water content, colour, impurity reporting, test methods and permitted packaging. Ask for a batch-specific certificate of analysis and compare the production sample with the material you will use in your process.
For GB supply, confirm the applicable classification requirements with HSE, and ensure labels and packaging are correct before placing the chemical on the market. Obtain an English safety data sheet. Hazardous chemicals supplied for workplace use need a safety data sheet. Confirm UK REACH registration responsibilities with HSE based on your annual imports, rather than treating each shipment separately.
Worked duty example
Illustrative example, not a quote: Illustrative order: one tonne of neat diisopropylamine under 2921 19 99 90, invoiced at £4,000 free on board, with £2,500 of freight and insurance to the UK. The customs value is £6,500. Duty at 6% is £390. Import VAT at 20% is charged on the customs value plus duty, £6,890, so it is £1,378. Import taxes total £1,768; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £390 of duty. The import duty and VAT guide explains each step.
Inspection checklist
Identity: match the full substance name across the order, drum labels, safety data sheet and batch certificate; query any reference to ethyldiisopropylamine.
Batch analysis: check assay, water and colour against the agreed specification; request chromatographic results where impurity identity matters.
Drums: inspect seals, closures, leakage, damage and batch markings on arrival; record discrepancies before releasing the stock.
Supply documents: check that labels and packaging match the established classification and that the English safety data sheet describes the supplied material.
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What goes wrong
A similar chemical name can lead to the wrong material or an unsupported suspension claim. A headline assay can also conceal water or impurities that matter to your process. Avoid accepting a generic certificate covering several products; agree the analytical basis and batch acceptance criteria before ordering.
Damaged closures, missing batch identification or inconsistent documents prevent a reliable receiving decision. Hold affected stock while the supplier resolves the discrepancy. A safety data sheet supports workplace assessment; it does not replace the buyer's assessment of how the chemical will be handled.
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 diisopropylamine from China?
The residual line 2921 19 99 90 carries 6% duty, subject to classification confirmation. Its named suspensions do not include diisopropylamine, and no anti-dumping or countervailing measure is recorded.
Does the ethyldiisopropylamine suspension cover diisopropylamine?
No. The suspension names ethyldiisopropylamine, a different substance. Do not claim it merely because the supplier uses a similar product name.
What should a diisopropylamine batch certificate show?
Ask for the supplied substance's identity, batch reference, assay, water, colour, relevant impurities and test methods, with results compared against your agreed specification.
Do small diisopropylamine orders avoid chemical supply rules?
Small order size does not remove labelling and packaging duties. Check UK REACH responsibilities against annual imports, and obtain the safety data sheet before accepting the shipment.