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Morpholine Technical Grade from China

Morpholine features a six-membered heterocyclic ring containing two oxygen and two nitrogen hetero-atoms, used in rubber vulcanization and pharmaceutical synthesis. Despite nitrogen presence, classified by last numerical heading rule at 2932.99.90.90 when oxygen hetero-atom structure predominates. Meets Chapter 29 definition for heterocyclic compounds.

Duty Rate — China → United States

16.2%

Rate breakdown

9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

Import Tips

Submit structural analysis confirming oxygen hetero-atom priority over nitrogen functions

Provide end-use statement distinguishing from pesticide uses (2932.99 statistical suffixes)

Avoid bulk packaging >200L drums which may trigger 3824 mixture classification