HTS 2922.21.10.00

1-amino-8-hydroxy-3,6-naphthalenedisulfonic Acid; 4-amino-5-hydroxy-1,3-naphthalenedisulfonic Acid (chicago Acid); 4-amino-5-hydroxy-1,3-naphthalenedisulfonic Acid, Potassium Salt; 4-amino-5-hydroxy-1,3-naphthalenedisulfonic Acid, Sodium Salt; 4-amino-5-hydroxy-2,7-naphthalenedisulfonic Acid, Monosodium Salt (h Acid, Monosodium Salt); 4-amino-5-hydroxy-2,7-naphthalenedisulfonic Acid, Potassium Salt (h Acid, Monopotassium Salt); 4-amino-3-hydroxy-1-naphthalenesulfonic Acid; 6-amino-1-naphthol-3-s

U.S. import duty rate and tariff classification for HTS 2922.21.10.00 — 1-amino-8-hydroxy-3,6-naphthalenedisulfonic Acid; 4-amino-5-hydroxy-1,3-naphthalenedisulfonic Acid (chicago Acid); 4-amino-5-hydroxy-1,3-naphthalenedisulfonic Acid, Potassium Salt; 4-amino-5-hydroxy-1,3-naphthalenedisulfonic Acid, Sodium Salt; 4-amino-5-hydroxy-2,7-naphthalenedisulfonic Acid, Monosodium Salt (h Acid, Monosodium Salt); 4-amino-5-hydroxy-2,7-naphthalenedisulfonic Acid, Potassium Salt (h Acid, Monopotassium Salt); 4-amino-3-hydroxy-1-naphthalenesulfonic Acid; 6-amino-1-naphthol-3-s.

General (MFN)5.8%Most-favored-nation rate (most countries)

SpecialFree*Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,L,MA,OM,P,PA,PE,S,SG)

Column 215.4¢/kg + 39%Non-NTR countries

UnitkgReporting unit

U.S. trade in this category

See actual U.S. import & export volumes for Organic Chemicals (HS 29).

🇨🇳 Importing from China? Goods from China may carry an additional Section 301 tariff (+25% or +7.5%) on top of the rate above. Estimate the real landed cost →

Source: U.S. International Trade Commission (USITC) Harmonized Tariff Schedule. Rates are for reference; verify with a licensed customs broker before importing.