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Alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), carfentanil (INN), difenoxin (INN), diphenoxylate (INN), dipipanone (INN), fentanyl (INN), ketobemidone (INN), methylphenidate (INN), pentazocine (INN), pethidine (INN), pethidine (INN) intermediate A, phencyclidine (INN) (PCP), phenoperidine (INN), pipradrol (INN), piritramide (INN), propiram (INN), remifentanil (INN) and trimeperidine (INN); salts thereof

Heterocyclic compounds with oxygen hetero-atom(s) only. > Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: > Alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), carfentanil (INN), difenoxin (INN), diphenoxylate (INN), dipipanone (INN), fentanyl (INN), ketobemidone (INN), methylphenidate (INN), pentazocine (INN), pethidine (INN), pethidine (INN) intermediate A, phencyclidine (INN) (PCP), phenoperidine (INN), pipradrol (INN), piritramide (INN), propiram (INN), remifentanil (INN) and trimeperidine (INN); salts thereof > Alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), carfentanil (INN), difenoxin (INN), diphenoxylate (INN), dipipanone (INN), fentanyl (INN), ketobemidone (INN), methylphenidate (INN), pentazocine (INN), pethidine (INN), pethidine (INN) intermediate A, phencyclidine (INN) (PCP), phenoperidine (INN), pipradrol (INN), piritramide (INN), propiram (INN), remifentanil (INN) and trimeperidine (INN); salts thereof > Alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), carfentanil (INN), difenoxin (INN), diphenoxylate (INN), dipipanone (INN), fentanyl (INN), ketobemidone (INN), methylphenidate (INN), pentazocine (INN), pethidine (INN), pethidine (INN) intermediate A, phencyclidine (INN) (PCP), phenoperidine (INN), pipradrol (INN), piritramide (INN), propiram (INN), remifentanil (INN) and trimeperidine (INN); salts thereof

Duty Rate (from China)

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MFN TariffFree
Total Effective Rate0%

Products classified under Tariff item 2933.33.00

Alfentanil Hydrochloride USP

Alfentanil Hydrochloride is the hydrochloride salt of alfentanil, a synthetic opioid analgesic explicitly listed under tariff item 2933.33.00. Its molecular structure contains an unfused pyridine ring, satisfying the subheading requirement. This salt form is a separate chemically defined organic compound, classifiable here per Chapter 29 Note 1(a).

Carfentanil Citrate

Carfentanil Citrate is the citrate salt of carfentanil, a potent fentanyl analogue explicitly named in tariff item 2933.33.00. The compound contains an unfused pyridine ring, meeting the subheading's structural requirement. As a salt of a listed compound, it is classified here under Chapter 29 Note 5(C)(1).

Diphenoxylate Hydrochloride USP

Diphenoxylate Hydrochloride is the hydrochloride salt of diphenoxylate, an antidiarrheal agent explicitly listed in tariff item 2933.33.00. Its structure includes an unfused pyridine ring, satisfying the subheading criteria. The salt form is a separate chemically defined organic compound, classifiable under Chapter 29 Note 1(a).

Fentanyl Citrate USP

Fentanyl Citrate is the citrate salt of fentanyl, a synthetic opioid agonist explicitly named in tariff item 2933.33.00. The compound contains an unfused pyridine ring, meeting the subheading's structural requirement. As a salt of a listed compound, it is classified here per Chapter 29 Note 5(C)(1).

Ketobemidone Hydrochloride

Ketobemidone Hydrochloride is the hydrochloride salt of ketobemidone, a synthetic opioid analgesic explicitly listed in tariff item 2933.33.00. Its molecular structure includes an unfused pyridine ring, satisfying the subheading criteria. The salt is a separate chemically defined organic compound, classifiable under Chapter 29 Note 1(a).

Methylphenidate Hydrochloride USP

Methylphenidate Hydrochloride is the hydrochloride salt of methylphenidate, a CNS stimulant explicitly named in tariff item 2933.33.00. The compound contains an unfused pyridine ring, meeting the subheading's structural requirement. As a salt of a listed compound, it is classified here under Chapter 29 Note 5(C)(1).

Pentazocine Lactate USP

Pentazocine Lactate is the lactate salt of pentazocine, a mixed opioid agonist-antagonist explicitly listed in tariff item 2933.33.00. Its structure includes an unfused pyridine ring, satisfying the subheading criteria. The salt is a separate chemically defined organic compound, classifiable under Chapter 29 Note 1(a).

Pethidine Hydrochloride BP

Pethidine Hydrochloride is the hydrochloride salt of pethidine (meperidine), a synthetic opioid analgesic explicitly listed in tariff item 2933.33.00. The compound contains an unfused pyridine ring, meeting the subheading's structural requirement. As a salt of a listed compound, it is classified here per Chapter 29 Note 5(C)(1).

Phencyclidine Hydrochloride (PCP HCl)

Phencyclidine Hydrochloride is the hydrochloride salt of phencyclidine (PCP), a dissociative anesthetic explicitly listed in tariff item 2933.33.00. Its molecular structure includes an unfused pyridine ring, satisfying the subheading criteria. The salt is a separate chemically defined organic compound, classifiable under Chapter 29 Note 1(a).

Remifentanil Hydrochloride USP

Remifentanil Hydrochloride is the hydrochloride salt of remifentanil, an ultra-short-acting opioid anesthetic explicitly listed in tariff item 2933.33.00. The compound contains an unfused pyridine ring, meeting the subheading's structural requirement. As a salt of a listed compound, it is classified here under Chapter 29 Note 5(C)(1).