# United States tariff line 2922.19.09.10: Diphenhydramine (INN) and its salts > In the United States tariff, line 2922.19.09.10 covers amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof, aromatic, drugs, diphenhydramine (INN) and its salts. The general (MFN) duty rate is 6.5%. It falls under HS subheading 2922.19 in heading 29.22 (chapter 29). Source: https://border.bot/countries/united-states/hs-codes/2922190910 Last updated: 9 October 2026 [Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 29](https://border.bot/countries/united-states/hs-codes/29) / [2922.19](https://border.bot/countries/united-states/hs-codes/292219) / [2922.19.09.10](https://border.bot/countries/united-states/hs-codes/2922190910) ## Key facts - Tariff line: 2922.19.09.10 - Covers: Amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof, aromatic, drugs, diphenhydramine (INN) and its salts - Duty (MFN): 6.5% - Preferential rates: From free (17 programmes or origins) - Additional duties: None recorded - Restrictions: None recorded - Tariff: [United States](https://border.bot/countries/united-states) - HS subheading: [2922.19](https://border.bot/hs-codes/292219) ## What this line covers In the United States tariff, line 2922.19.09.10 covers amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof, aromatic, drugs, diphenhydramine (INN) and its salts. Its legal text is “Diphenhydramine (INN) and its salts”, read under “Amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof”, “Other”, “Aromatic” and “Drugs”. ## How it is structured It falls under HS subheading 2922.19 in heading 29.22 (chapter 29). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff. - Chapter 29: Organic chemicals - Heading 29.22: Oxygen-function amino-compounds - Subheading 2922.19: Amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof - Within the subheading: Other - Within the subheading: Aromatic - Within the subheading: Drugs - Line 2922.19.09.10: Diphenhydramine (INN) and its salts ## Duty The general (MFN) duty rate is 6.5%. The rate is published on 2922.19.09. Duty-free entry applies to goods that qualify under 16 programmes, and to goods from a group of origins (origin group A+). - Free: a group of origins (origin group A+) (A+) - Free: United States-Australia Free Trade Agreement (AU) - Free: United States-Bahrain Free Trade Agreement Implementation Act (BH) - Free: United States-Chile Free Trade Agreement (CL) - Free: United States-Colombia Trade Promotion Agreement Implementation Act (CO) - Free: African Growth and Opportunity Act (D) - Free: Caribbean Basin Economic Recovery Act (E) - Free: United States-Israel Free Trade Area (IL) - Free: United States-Jordan Free Trade Area Implementation Act (JO) - Free: United States-Korea Free Trade Agreement Implementation Act (KR) - Free: United States-Morocco Free Trade Agreement Implementation Act (MA) - Free: United States-Oman Free Trade Agreement Implementation Act (OM) - Free: Dominican Republic-Central America-United States Free Trade Agreement (P) - Free: United States-Panama Trade Promotion Agreement Implementation Act (PA) - Free: United States-Peru Trade Promotion Agreement Implementation Act (PE) - Free: United States-Mexico-Canada Agreement (S) - Free: United States-Singapore Free Trade Agreement (SG) ## In other countries No other national tariff on border.bot has live lines under 2922.19 yet. - [The Harmonized System text for 2922.19](https://border.bot/hs-codes/292219) ## Other lines under 2922.19 - [2922.19.09.90](https://border.bot/countries/united-states/hs-codes/2922190990) Other - [2922.19.20.00](https://border.bot/countries/united-states/hs-codes/2922192000) 4,4'-Bis(dimethylamino) benzhydrol (Michler's hydrol); 5'-[3'-(Dimethylamino) propyl]-10',11'- dihydro-5H'-dibenzo [a,b] cyclohept- en-5'-ol (Dibenzcarbinol); and 1-(p-Nitrophenyl)-2-amino-1,3- propanediol - [2922.19.33.00](https://border.bot/countries/united-states/hs-codes/2922193300) N1-(2-Hydroxyethyl)-2-nitro-1,4- phenylenediamine;N1,N4,N4- Tris(2-hydroxyethyl)-2- nitro-1,4- phenylenediamine;N1,N4-Dimethyl-N1- (2-hydroxyethyl)-3-nitro-1,4- phenylene- diamine;N1,N4-Dimethyl-N1-(2,3-dihydroxy- propyl)-3-nitro-1,4- phenylenediamine; andN1-(2-Hydroxyethyl)-3-nitro-1,4- phenylenediamine - [2922.19.60.00](https://border.bot/countries/united-states/hs-codes/2922196000) Products described in additional U.S. note 3 to section VI - [2922.19.70.00](https://border.bot/countries/united-states/hs-codes/2922197000) Other - [2922.19.90.00](https://border.bot/countries/united-states/hs-codes/2922199000) Salts of triethanolamine - [2922.19.96.10](https://border.bot/countries/united-states/hs-codes/2922199610) N,N-Dimethyl-2-aminoethanol, N,N-diethyl-2-aminoethanol and their protonated salts - [2922.19.96.19](https://border.bot/countries/united-states/hs-codes/2922199619) Other - [2922.19.96.90](https://border.bot/countries/united-states/hs-codes/2922199690) Other - Previous line: [2922.18.00.00](https://border.bot/countries/united-states/hs-codes/2922180000) 2-(N,N-Diisopropylamino)ethanol - Next line: [2922.19.09.90](https://border.bot/countries/united-states/hs-codes/2922190990) Other ## Frequently asked questions ### What does tariff line 2922.19.09.10 cover in the United States tariff? In the United States tariff, line 2922.19.09.10 covers amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof, aromatic, drugs, diphenhydramine (INN) and its salts. ### What is the general (MFN) duty on 2922.19.09.10 in the United States? The general (MFN) duty rate is 6.5%. The rate is published on 2922.19.09. ### Which preferential rates apply to 2922.19.09.10? Duty-free entry applies to goods that qualify under 16 programmes: the United States-Australia Free Trade Agreement, the United States-Bahrain Free Trade Agreement Implementation Act, the United States-Chile Free Trade Agreement, the United States-Colombia Trade Promotion Agreement Implementation Act, African Growth and Opportunity Act, Caribbean Basin Economic Recovery Act, the United States-Israel Free Trade Area, the United States-Jordan Free Trade Area Implementation Act, the United States-Korea Free Trade Agreement Implementation Act, the United States-Morocco Free Trade Agreement Implementation Act, the United States-Oman Free Trade Agreement Implementation Act, the Dominican Republic-Central America-United States Free Trade Agreement, the United States-Panama Trade Promotion Agreement Implementation Act, the United States-Peru Trade Promotion Agreement Implementation Act, the United States-Mexico-Canada Agreement and the United States-Singapore Free Trade Agreement, and to goods from a group of origins (origin group A+). ## Sources and updates The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. This page was last updated on 9 October 2026. Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling. Official source files: - https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false Machine-readable: https://border.bot/countries/united-states/hs-codes/2922190910.json