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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.

Import Duty Rates by Country of Origin

Origin Country	MFN Rate	Ch.99 Surcharges	Total Effective Rate
🇨🇳China	Free	+12.5%	12.5%
🇲🇽Mexico	Free	+10.0%	10%
🇨🇦Canada	Free	+10.0%	10%
🇩🇪Germany	Free	+10.0%	10%
🇯🇵Japan	Free	+15.0%	15%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2918Higher: 16.5% vs 12.5%

If esterified with carboxylic acids dominating classification

Note 3(A) classifies esters with the later subchapter compound.

3822Same rate: 12.5%

If for diagnostic or lab reagent mixtures

Prepared reagents for analysis fall outside pure Chapter 29 compounds.

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Import Tips & Compliance

• Secure end-user statements for non-human consumption if research-grade

• Package with stabilizers only if necessary for transport per note (f) to maintain classification

• Monitor FDA import alerts for opioid precursors

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.

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.

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.