Triphenyl Phosphine Sulfide from Japan
Triphenyl phosphine sulfide ((C6H5)3P=S) contains three aromatic phenyl groups with a phosphorus-sulphur functionality. It is used as a ligand in catalysis and in polymer synthesis. As an organo-sulphur compound with sulphur directly linked to phosphorus, it falls under heading 29.30 and tariff item 2930.90.00.
Duty Rate — Japan → Canada
0%
Import Tips
• The sulphur atom is directly linked to phosphorus, which is a non-metal; this confirms classification in heading 29.30 under Chapter 29 Note 6
• Provide the melting point and purity for customs verification
• Check if the product requires a permit under the Chemical Weapons Convention if used in specific applications