# HTS 2912: Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde:

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Source: [2026 HTS Revision 21 (October 9, 2026)](https://hts.usitc.gov/search?query=2912). Additional duties by country of origin may apply; estimate a shipment's full duty with the tariff calculator: https://geopax.app/tariffs/calculator

## 2912: Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde:

| Code | Description | General | Special | Column 2 | Units |
| --- | --- | --- | --- | --- | --- |
| 2912 | Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde: |  |  |  |  |
|  |   Acyclic aldehydes without other oxygen function: |  |  |  |  |
| 2912.11.00.00 |     Methanal (Formaldehyde) | 2.8% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 12.1% | kg |
| 2912.12.00.00 |     Ethanal (Acetaldehyde) | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 71% | kg |
| 2912.19 |     Other: |  |  |  |  |
|  |       Odoriferous or flavoring compounds: |  |  |  |  |
| 2912.19.10.00 |         Citral | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg |
| 2912.19.20.00 |         Other | 4.8% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg |
|  |       Other: |  |  |  |  |
| 2912.19.25.00 |         Butanal (Butyraldehyde, normal isomer) | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 61.5% | kg |
| 2912.19.30.00 |         Glyoxal | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
| 2912.19.40.00 |         Isobutanal | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 61.5% | kg |
| 2912.19.50.00 |         Other | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 37% | kg |
|  |   Cyclic aldehydes without other oxygen function: |  |  |  |  |
| 2912.21.00.00 |     Benzaldehyde | 5.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 45% | kg |
| 2912.29 |     Other: |  |  |  |  |
| 2912.29.10.00 |       Phenylacetaldehyde | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg +40.5% | kg |
| 2912.29.30.00 |       3,4-Dimethylbenzaldehyde; Paraldehyde, USP grade; andp-Tolualdehyde | Free |  | 15.4¢/kg + 58% | kg |
| 2912.29.60 |       Other | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg +58% |  |
| 2912.29.60.10 |         Odoriferous or flavoring compounds | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg +58% | kg |
| 2912.29.60.90 |         Other | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg +58% | kg |
|  |   Aldehyde alcohols, aldehyde-ethers, aldehyde-phenols and aldehydes with other oxygen function: |  |  |  |  |
| 2912.41.00.00 |     Vanillin (4-Hydroxy-3-methoxybenzaldehyde) | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg +48% | kg |
| 2912.42.00.00 |     Ethylvanillin (3-Ethoxy-4-hydroxybenzaldehyde) | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg +80% | kg |
| 2912.49 |     Other: |  |  |  |  |
|  |       Aromatic: |  |  |  |  |
| 2912.49.10.00 |         p-Anisaldehyde | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg +36% | kg |
| 2912.49.15.00 |         p-Hydroxybenzaldehyde | Free |  | 15.4¢/kg + 58% | kg |
| 2912.49.26.00 |         Other | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg +58% | kg |
|  |       Other: |  |  |  |  |
|  |         Aldehyde-alcohols: |  |  |  |  |
| 2912.49.55.00 |           Hydroxycitronellal | 4.8% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg |
| 2912.49.60.00 |           Other | 5.1% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 37% | kg |
| 2912.49.90.00 |         Other | 4.8% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg |
| 2912.50 |   Cyclic polymers of aldehydes: |  |  |  |  |
| 2912.50.10.00 |     Metaldehyde | Free |  | 40% | kg |
| 2912.50.50.00 |     Other | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,L,MA,OM,P,PA,PE,S,SG) | 40% | kg |
| 2912.60.00.00 |   Paraformaldehyde | 5.1% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 32.5% | kg |