HTS Lookup
2937
Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones:
Duty rates
A lookup result is not a customs classification ruling. Special-rate program codes are defined in the official HTS General Notes on hts.usitc.gov.
Official sourceU.S. International Trade Commission
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