2,5-Diphenyloxazole NMR Standard from China
2,5-Diphenyloxazole NMR Standard is a certified reference material of 98% purity with a NIST-traceable NMR spectrum. It is an aromatic heterocyclic compound containing an oxazole ring, classified under tariff item 2934.99.00. It is used for calibrating 1H and 13C NMR spectrometers in pharmaceutical quality control laboratories.
Duty Rate — China → Canada
0%
Import Tips
• For certified reference materials, include the certificate of analysis and traceability documentation to expedite CBSA clearance
• Ensure the product is not put up for retail sale as a diagnostic reagent, which could shift classification
• Check if the product requires Controlled Goods or other regulatory permits