2931.59.00.60/Methylphosphonyl bromide/Japan

Methylphosphonyl bromide from Japan

Methylphosphonyl bromide (CH3P(O)Br2) features phosphorus bonded to a single methyl group and two bromines, precisely matching HTS 2931.59.00.60 structural specifications. This compound serves as a phosphorylating agent in nucleotide synthesis.

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%

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Import Tips

• Biotech intermediates require additional CBP biotech import permits beyond standard chemical clearance

• Declare CAS number 676-97-1 explicitly on commercial invoice for automated customs processing

• Use nitrogen-purged containers to prevent moisture-induced decomposition during storage