Dextropropoxyphene Napsylate
Dextropropoxyphene napsylate is a water-soluble salt of dextropropoxyphene, formerly used in combination pain medications like Darvon-N. Classified under HTS 2922.14.00.00 due to chapter notes specifying salts of this INN compound as oxygen-function amino-alcohols.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If in stabilized bulk form for industrial pharmaceutical synthesis
Certain stabilized organic compounds with added agents may shift to other Chapter 29 headings if not purely amino-alcohols.
If for antisecretory or immunological preparations containing the salt
Chapter notes exclude immunological products to Chapter 30, even if chemically defined.
If classified based on carboxylic acid function over amino-alcohol
Per note 3(A), esters or salts prioritize the last numerical heading, potentially shifting classification.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify salt identity via HPLC testing to distinguish from hydrochloride and ensure correct HTS classification
• File prior notice with FDA for chemical imports and monitor DEA scheduling (now Schedule II equivalent)
• Avoid bulk packaging over stabilizer limits per chapter note (f) to prevent reclassification as mixtures
Related Products under HTS 2922.14.00.00
Dextropropoxyphene Hydrochloride
Dextropropoxyphene hydrochloride is the salt form of dextropropoxyphene, a synthetic opioid analgesic used for mild to moderate pain relief. It falls under HTS 2922.14.00.00 as it is specifically listed as dextropropoxyphene (INN) and its salts, which are oxygen-function amino-compounds classified as amino-alcohols, their ethers, esters, or salts.
Bulk Dextropropoxyphene Base (as Hydrochloride Salt)
Pharmaceutical-grade dextropropoxyphene hydrochloride supplied in bulk powder for API manufacturing. It qualifies for HTS 2922.14.00.00 as a separate chemically defined organic compound and its salt, per chapter note (a).
Dextropropoxyphene Hydrochloride USP Grade
USP-grade dextropropoxyphene hydrochloride meets United States Pharmacopeia standards for purity in drug production. Falls under HTS 2922.14.00.00 as the named salt of this oxygen-function amino-compound.
Pharmaceutical Dextropropoxyphene Napsylate Powder
Fine powder of dextropropoxyphene napsylate for compounding in pain relief formulations. Classified in HTS 2922.14.00.00 following chapter rules for salts of listed INN compounds in this amino-alcohol subheading.