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.
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 sufficiently polymerized to qualify as unsaturated polyester resin
Advanced polymerization changes classification from Chapter 29 monomers to Chapter 39 plastics.
If paraformaldehyde content exceeds 30% by weight
Paraformaldehyde specifically identified earlier in 2912.60; numerical order rule applies.
If for industrial solvent solutions not qualifying under Chapter 29 note (e)
Solvent-dissolved products only qualify if for safety/transport and not specific use.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Provide FTIR/NMR spectra confirming cyclic polymer structure per Chapter 29 heading 2912 definition
• Declare intended resin manufacturing use to support chemical intermediate classification
• Ensure <1% monomer content to avoid mixture classification under Chapter 38
Related Products under HTS 2912.50.50.00
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.
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.
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.