Methylphosphonyl Difluoride Stabilized Solution from Japan
Stabilized methylphosphonyl difluoride solution contains CH3P(O)F2 with added anticaking agent for safe transport. Permitted under HTS 2931.59.00.15 per Chapter Note (f) as the stabilizer is solely for preservation, maintaining classification as the pure chemically defined compound. Used in controlled laboratory reagent applications.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Declare stabilizer <1% and purpose (transport only) to avoid 3824 mixture reclassification
• Use DOT SP 149 for stabilized fluorides; improper marking leads to carrier refusal
• Provide stabilizer composition to CBP Chemistry Lab if requested during exam