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N,N'-Diphenylguanidine from Japan

N,N'-Diphenylguanidine is an aromatic imine-function compound specifically enumerated under HTS 2925.29.18.00, used primarily as an accelerator in rubber vulcanization processes. Its chemical structure features the guanidine moiety with phenyl substituents, qualifying it as a derivative of imines in this tariff subheading.

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

Provide detailed chemical analysis certificates confirming purity and structure to match the enumerated specification

Ensure SDS and REACH compliance documentation for handling as a vulcanization accelerator

Verify CAS number 102-06-7 matches import declaration to avoid misclassification