Sourcing EDC hydrochloride from China

Zero duty on the dedicated EDC hydrochloride line

Read from the UK Trade Tariff on 1 October 2026, EDC hydrochloride under 2925 29 00 20 carries 0% duty for goods from China. Heading 2925 covers carboxyimide-function and imine-function compounds; this named line identifies the hydrochloride by CAS number 25952-53-8. The supplied tariff record lists no anti-dumping or countervailing duty and no suspension for this line.

The UK Trade Tariff attaches Veterinary control to this line. An EDC-specific requirement for synthetic material from China has not been established here, so the importer should confirm the requirement with their customs broker before shipment. The record also attaches export controls on dangerous chemicals and waste; ask the broker to confirm their relevance if planning a return or onward export.

Confirm the identity, composition and commodity code, especially for solutions or formulated products. Only the dedicated EDC hydrochloride line is shown here. See the dicyclohexylcarbodiimide guide for related heading coverage. Allow for 20% import VAT and review the duty and VAT calculation.

Specify the hydrochloride, assay and reaction performance

Write EDC hydrochloride and CAS number 25952-53-8 into the purchase specification. Distinguish the hydrochloride from the free base and other carbodiimides. Agree assay method, water content, residual solvents, impurity reporting and the intended coupling application. Ask for actual batch results rather than a generic specification sheet.

Agree pack size, closure, moisture protection and storage instructions with the supplier. Trial a sample in your own reaction before approving the production batch. Compare conversion, impurity profile and work-up against your existing material.

For a new substance import, assess whether UK REACH registration is required. Classification and labelling must be carried out by someone with scientific competence. If the chemical is hazardous and supplied for workplace use, a safety data sheet is required. Review these documents alongside the analytical specification.

Worked duty example

Illustrative example, not a quote: Illustrative small-business order of EDC hydrochloride in sealed laboratory packs under 2925 29 00 20, invoiced at £2,500 free on board, with £800 of freight and insurance to the UK. The customs value is £3,300. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £3,300, so it is £660. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.

Inspection checklist

Identity: match the hydrochloride name and CAS number across the order, container labels, analysis certificate and safety data sheet.

Batch results: check assay, water and impurity results against the agreed methods and acceptance criteria; retain a representative sample.

Packaging: inspect seals, liners and closures for damage, leakage or signs of moisture exposure; record unexpected caking or discolouration.

Performance: test a received sample in the agreed coupling reaction before releasing the batch for routine use. Arrange testing support where needed.

What goes wrong

A matching product name can hide a different salt form, an unsuitable impurity profile or analytical results from another batch. A headline assay alone does not show whether the material performs in your process. Match the documents to the delivered batch and agree a reaction trial as part of acceptance.

Damaged seals or unsuitable storage can leave material outside the agreed condition. Keep suspect packs separate while investigating, compare retained samples and batch results, and document the supplier's proposed remedy before using the stock.

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.