High Purity P4S3 for Organic Synthesis from Germany
High purity phosphorus trisulfide (P4S3) at 99% purity, supplied as crystals, is used as a thionating agent to convert carbonyls to thiocarbonyls in pharmaceutical intermediate synthesis. It is classified under tariff item 2813.90.00 as an 'other' sulfide of a non-metal, being commercial phosphorus trisulfide.
Duty Rate — Germany → Canada
0%
Import Tips
• Provide a certificate of analysis confirming the 99% purity to support the classification
• Ensure the product is not put up in measured doses or for retail sale, which could trigger other headings
• Confirm the end-use as a thionating agent to justify the high-purity grade