Tripropyl Phosphorothioate Flame Retardant Intermediate from Germany
A high-purity grade of 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide used specifically as an intermediate in synthesizing phosphorus-based flame retardants for plastics. Classified under HTS 2931.46.00.00 due to its precise organo-phosphorus cyclic structure without halogens. Supplied as white crystalline powder for industrial chemical processing.
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 detailed end-use statement specifying flame retardant synthesis to support classification and avoid reclassification as finished additive
• Confirm batch testing for phosphorus content >40% to distinguish from generic organophosphorus mixtures
• Register under TSCA Premanufacture Notification if annual import volume exceeds 10,000 lbs