# HTS 2927: Diazo-, azo- or azoxy-compounds:

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Source: [2026 HTS Revision 21 (October 9, 2026)](https://hts.usitc.gov/search?query=2927). Additional duties by country of origin may apply; estimate a shipment's full duty with the tariff calculator: https://geopax.app/tariffs/calculator

## 2927: Diazo-, azo- or azoxy-compounds:

| Code | Description | General | Special | Column 2 | Units |
| --- | --- | --- | --- | --- | --- |
| 2927.00 | Diazo-, azo- or azoxy-compounds: |  |  |  |  |
| 2927.00.03.00 |   4-Aminoazobenzenedisulfonic acid, monosodium salt | Free |  | 15.4¢/kg + 40.5% | kg |
| 2927.00.06.00 |   p-Aminoazobenzenedisulfonic acid; and Diazoaminobenzene (1,3-Diphenyltriazene) | 5.8% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,L,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 40.5% | kg |
| 2927.00.15.00 |   1,1'-Azobisformamide | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
| 2927.00.18.00 |   1-Naphthalenesulfonic acid, 6-diazo-5,6-dihydro-5-oxo, ester with phenyl(2,3,4-trihydroxyphenyl)methanone; 1-Naphthalenesulfonic acid, 3-diazo-3,4-dihydro-4- oxo-ar'-(1-methylethyl) [1,1'-biphenyl]-4-yl ester; 1-Napthanlenesulfonic acid, 6-diazo-5,6-dihydro-5- oxo-,(octahydro-4,7-methano-1H-indene-2,5-diyl) bis- (methylene) ester; and 1-Naphthalenesulfonic acid, 6-diazo-5,6-dihydro-5- oxo-, 4-benzoyl-1,2,3-benzenetriyl ester | Free |  | 15.4¢/kg + 50% | kg |
|  |   Other: |  |  |  |  |
| 2927.00.25.00 |     Photographic chemicals | 6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 50% | kg |
| 2927.00.30.00 |     Fast color bases and fast color salts | 6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 54.5% | kg |
|  |     Other: |  |  |  |  |
| 2927.00.40.00 |       Products described in additional U.S. note 3 to section VI | 6.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,L,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 63.5% | kg |
| 2927.00.50.00 |       Other | 6.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,L,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 63.5% | kg |