Paraldehyde USP
Paraldehyde is a cyclic trimer of acetaldehyde used primarily as a sedative and anticonvulsant in pharmaceutical formulations. It falls under HTS 2912.50.5000 as a cyclic polymer of aldehydes, specifically 'other' cyclic polymers beyond paraformaldehyde. This chemically defined organic compound meets Chapter 29 note (a) for separate compounds.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 5.5% | +35.0% | 40.5% |
| 🇲🇽Mexico | 5.5% | +10.0% | 15.5% |
| 🇨🇦Canada | 5.5% | +10.0% | 15.5% |
| 🇩🇪Germany | 5.5% | +10.0% | 15.5% |
| 🇯🇵Japan | 5.5% | +10.0% | 15.5% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as monomeric acetaldehyde rather than polymerized
Monomeric aldehydes without cyclic polymerization fall under specific acetaldehyde heading earlier in numerical order.
If blended with solvents or additives exceeding Chapter 29 purity limits
Mixtures not qualifying as separate chemically defined compounds per Chapter 29 note (a) shift to mixtures heading.
If pre-formulated as finished medicinal sedative dosage
Medicaments in dosage form containing cyclic aldehydes are excluded from Chapter 29 by note 2(e) via Chapter 30.
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Import Tips & Compliance
• Verify purity certificates (USP grade) and provide chemical analysis to confirm cyclic polymer structure per Chapter 29 notes
• Include Safety Data Sheets (SDS) showing sedative/hypnotic use to avoid misclassification as industrial solvents
• Ensure proper HazMat shipping declarations as it's a flammable liquid (UN 2606)
Related Products under HTS 2912.50.50.00
Metaldehyde 99% Technical Grade
Metaldehyde is a cyclic tetramer of acetaldehyde used as a molluscicide pesticide active ingredient. Classified under HTS 2912.50.5000 as 'other' cyclic polymers of aldehydes. Excluded from heading 3606 per Chapter 29 note (i) when in technical form, not fuel tablets.
Cyclical Aldehyde Resin Precursor
Specialty cyclic polymers of aldehydes (acetaldehyde/butyraldehyde tetramers) used as intermediates for synthetic resin production. HTS 2912.50.5000 covers these 'other' cyclic aldehyde polymers not specified elsewhere. Meets Chapter 29 requirements for chemically defined organic compounds.
Pharmaceutical Grade Paracetaldehyde
High-purity cyclic trimer of acetaldehyde (paracetaldehyde) for pharmaceutical sedative applications. Falls under HTS 2912.50.5000 as other cyclic polymers of aldehydes. Chemically defined per Chapter 29 note (a), not excluded as finished medicament.
Metaldehyde Active Ingredient Powder
Pure metaldehyde powder (cyclic tetramer) as pesticide technical material before formulation. HTS 2912.50.5000 for other cyclic aldehyde polymers. Excluded from fuel classification per Chapter 29 note (i).
Aldol Cyclic Dimer Intermediate
Cyclic dimer formed from aldol condensation of acetaldehyde, used in flavor/fragrance synthesis. Classifies under HTS 2912.50.5000 as other cyclic aldehyde polymers. Chemically defined organic compound per Chapter 29.