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Origin China → US · 2026-09-08 (UTC) · default assumption, editable

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Choose the US HTS that matches the product

Check each line’s scope, material and use. Order is not a classification.

2933.11.00.00
Phenazone (Antipyrine) and its derivatives
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Parent scope and source text
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: · Phenazone (Antipyrine) and its derivatives
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: · Phenazone (Antipyrine) and its derivatives
HTS details ↗
2933.19
Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: — Other:
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To confirm: This line differs from the verified data release or full path; conditions need re-verification
Parent scope and source text
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: · Other:
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: · Other:
HTS details ↗
2933.21.00.00
Hydantoin and its derivatives
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Parent scope and source text
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure: · Hydantoin and its derivatives
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure: · Hydantoin and its derivatives
HTS details ↗
2933.29
Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure: — Other:
Not enough facts yet
To confirm: This line differs from the verified data release or full path; conditions need re-verification
Parent scope and source text
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure: · Other:
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure: · Other:
HTS details ↗
2933.31.00.00
Pyridine and its salts
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Parent scope and source text
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: · Pyridine and its salts
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: · Pyridine and its salts
HTS details ↗
2933.32
Piperidine and its salts:
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To confirm: This line differs from the verified data release or full path; conditions need re-verification
Parent scope and source text
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: · Piperidine and its salts:
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: · Piperidine and its salts:
HTS details ↗
2933.33.01.00
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
Not enough facts yet
To confirm: This line differs from the verified data release or full path; conditions need re-verification
Parent scope and source text
Heterocyclic compounds with nitrogen 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
Heterocyclic compounds with nitrogen 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
HTS details ↗
2933.34.00.00
Other fentanyls and their derivatives
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To confirm: This line differs from the verified data release or full path; conditions need re-verification
Parent scope and source text
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: · Other fentanyls and their derivatives
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: · Other fentanyls and their derivatives
HTS details ↗
2933.35.00.00
3-Quinuclidinol
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To confirm: This line differs from the verified data release or full path; conditions need re-verification
Parent scope and source text
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: · 3-Quinuclidinol
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: · 3-Quinuclidinol
HTS details ↗
2933.36.00.00
4-Anilino-N-phenethylpiperidine (ANPP)
Not enough facts yet
To confirm: This line differs from the verified data release or full path; conditions need re-verification
Parent scope and source text
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: · 4-Anilino-N-phenethylpiperidine (ANPP)
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: · 4-Anilino-N-phenethylpiperidine (ANPP)
HTS details ↗
2933.37.00.00
N-Phenethyl-4-piperidone (NPP)
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To confirm: This line differs from the verified data release or full path; conditions need re-verification
Parent scope and source text
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: · N-Phenethyl-4-piperidone (NPP)
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: · N-Phenethyl-4-piperidone (NPP)
HTS details ↗
2933.39
Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: — Other:
Not enough facts yet
To confirm: This line differs from the verified data release or full path; conditions need re-verification
Parent scope and source text
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: · Other:
Heterocyclic compounds with nitrogen hetero-atom(s) only: · Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: · Other:
HTS details ↗

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