# United States tariff line 2918.99.06.00: 1-Hydroxy-6-octadecyloxy-2-naphthalene- carboxylic acid; and 1-Hydroxy-6-docosyloxy-2-naphthalene- carboxylic acid > In the United States tariff, line 2918.99.06.00 covers aromatic, 1-Hydroxy-6-octadecyloxy-2-naphthalene- carboxylic acid; and 1-Hydroxy-6-docosyloxy-2-naphthalene- carboxylic acid. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 2918.99 in heading 29.18 (chapter 29). Source: https://border.bot/countries/united-states/hs-codes/2918990600 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) / [2918.99](https://border.bot/countries/united-states/hs-codes/291899) / [2918.99.06.00](https://border.bot/countries/united-states/hs-codes/2918990600) ## Key facts - Tariff line: 2918.99.06.00 - Covers: Aromatic, 1-Hydroxy-6-octadecyloxy-2-naphthalene- carboxylic acid; and 1-Hydroxy-6-docosyloxy-2-naphthalene- carboxylic acid - Duty (MFN): Free - Additional duties: None recorded - Restrictions: None recorded - Tariff: [United States](https://border.bot/countries/united-states) - HS subheading: [2918.99](https://border.bot/hs-codes/291899) ## What this line covers In the United States tariff, line 2918.99.06.00 covers aromatic, 1-Hydroxy-6-octadecyloxy-2-naphthalene- carboxylic acid; and 1-Hydroxy-6-docosyloxy-2-naphthalene- carboxylic acid. Its legal text is “1-Hydroxy-6-octadecyloxy-2-naphthalene- carboxylic acid; and 1-Hydroxy-6-docosyloxy-2-naphthalene- carboxylic acid”, read under “Other”, “Other” and “Aromatic”. ## How it is structured It falls under HS subheading 2918.99 in heading 29.18 (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 29.18: Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives - Subheading 2918.99: Other - Within the subheading: Other - Within the subheading: Aromatic - Line 2918.99.06.00: 1-Hydroxy-6-octadecyloxy-2-naphthalene- carboxylic acid; and 1-Hydroxy-6-docosyloxy-2-naphthalene- carboxylic acid ## Duty Goods under this line enter free of general (MFN) duty. ## In other countries No other national tariff on border.bot has live lines under 2918.99 yet. - [The Harmonized System text for 2918.99](https://border.bot/hs-codes/291899) ## Other lines under 2918.99 - [2918.99.05.00](https://border.bot/countries/united-states/hs-codes/2918990500) p-Anisic acid; Clofibrate; and 3-Phenoxybenzoic acid - [2918.99.14.00](https://border.bot/countries/united-states/hs-codes/2918991400) 2-(4-Chloro-2-methylphenoxy)propionic acid and its salts - [2918.99.18.00](https://border.bot/countries/united-states/hs-codes/2918991800) 4-(4-Chloro-2-methylphenoxy) butyric acid;p-Chlorophenoxyacetic acid; and 2-(2,4-Dichlorophenoxy) propionic acid - [2918.99.20.10](https://border.bot/countries/united-states/hs-codes/2918992010) 2,4-Dichlorophenoxyacetic acid, its salts and esters - [2918.99.20.15](https://border.bot/countries/united-states/hs-codes/2918992015) 2-Methyl-4-chlorophenoxyacetic acid - [2918.99.20.50](https://border.bot/countries/united-states/hs-codes/2918992050) Other - [2918.99.30.00](https://border.bot/countries/united-states/hs-codes/2918993000) Drugs - [2918.99.35.00](https://border.bot/countries/united-states/hs-codes/2918993500) Odoriferous or flavoring compounds - [2918.99.43.10](https://border.bot/countries/united-states/hs-codes/2918994310) 2-Methyl-3-phenyloxirane-2-carboxylic acid (P-2-P methyl glycidic acid), its salts and esters - [2918.99.43.50](https://border.bot/countries/united-states/hs-codes/2918994350) Other - [2918.99.47.00](https://border.bot/countries/united-states/hs-codes/2918994700) Other - [2918.99.50.00](https://border.bot/countries/united-states/hs-codes/2918995000) Other - Previous line: [2918.99.05.00](https://border.bot/countries/united-states/hs-codes/2918990500) p-Anisic acid; Clofibrate; and 3-Phenoxybenzoic acid - Next line: [2918.99.14.00](https://border.bot/countries/united-states/hs-codes/2918991400) 2-(4-Chloro-2-methylphenoxy)propionic acid and its salts ## Frequently asked questions ### What does tariff line 2918.99.06.00 cover in the United States tariff? In the United States tariff, line 2918.99.06.00 covers aromatic, 1-Hydroxy-6-octadecyloxy-2-naphthalene- carboxylic acid; and 1-Hydroxy-6-docosyloxy-2-naphthalene- carboxylic acid. ### What is the general (MFN) duty on 2918.99.06.00 in the United States? Goods under this line enter free of general (MFN) duty. ## 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/2918990600.json