Tris(trimethylsilyl)phosphine from Germany
Tris(trimethylsilyl)phosphine [(Me3Si)3P] contains three direct P-Si-C linkages through silicon, qualifying as organo-inorganic with phosphorus-carbon connectivity via heteroatoms. Falls under HTS 2931.49.0080 as non-halogenated organo-phosphorus derivative. Used in low-valent phosphorus chemistry and semiconductor precursors.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Provide structural analysis confirming P-Si-C chain meets organo-inorganic definition
• Pyrophoric nature requires inert atmosphere packaging; include handling instructions
• Air-sensitive; vacuum-sealed ampoules mandatory for import clearance