4-CPA (4-chlorophenoxyacetic acid) from Canada
4-CPA is a plant growth regulator and herbicide, an aromatic phenoxyacetic acid with chlorine substitution, used for celery and tobacco defoliation. Under HTS 2918.99.2050 as an aromatic pesticide with carboxylic acid and ether oxygen functions. Complies with Chapter 29 scope for chemically defined pesticide compounds.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include phytosanitary certificate if dual use as growth regulator in agriculture
• Document stability data as it may require stabilizer per Chapter Note 1(f)
• Watch for bulk vs packaged; retail packs may shift to Chapter 38