HS Code 2918Acids; carboxylic acid with additional oxygen function and their anhydrides, halides, peroxides, peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives
16 six-digit codes · Heading 18 of 42 in Chapter 29 · World Customs Organization Harmonized System
HS code 2918 is the customs heading for organic acids that carry an extra oxygen group, such as citric and lactic acid. Use this page to match your product to the right code.
Heading 2918 is finely cut: 16 six-digit codes, 291811 to 291899, all of them under “Acids; carboxylic acid with additional oxygen function and their anhydrides, halides, peroxides, peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives”. At that depth it is the exact wording of the code, not of the heading, that settles a classification. The heading is number 18 of 42 in Chapter 29, Organic chemicals, which runs to 410 six-digit codes in all.
Six-digit codes under heading 2918
| HS Code | Import–export description |
|---|---|
| 291811 | Acids; carboxylic acids, (with alcohol function but without other oxygen function), lactic acid, its salts and esters |
| 291812 | Acids; carboxylic acids, (with alcohol function but without other oxygen function), tartaric acid |
| 291813 | Acids; carboxylic acids, (with alcohol function but without other oxygen function); salts and esters of tartaric acid |
| 291814 | Acids; carboxylic acids, (with alcohol function but without other oxygen function), citric acid |
| 291815 | Acids; carboxylic acids, (with alcohol function but without other oxygen function), salts and esters of citric acid |
| 291816 | Acids; carboxylic acids, (with alcohol function but without other oxygen function), gluconic acid, its salts and esters |
| 291817 | Acids; carboxylic acids, (with alcohol function but without other oxygen function), 2,2-diphenyl-2-hydroxyacetic acid (benzilic acid) |
| 291818 | Acids; carboxylic acids, (with alcohol function but without other oxygen function), chlorobenzilate (iso) |
| 291819 | Acids; carboxylic acids, (with alcohol function but without other oxygen function), other than lactic, tartaric, citric, and gluconic acids and their salts and esters |
| 291821 | Acids; carboxylic acids, (with phenol function but without other oxygen function), salicylic acid and its salts |
| 291822 | Acids; carboxylic acids, (with phenol function but without other oxygen function), o-acetylsalicylic acid, its salts and esters |
| 291823 | Acids; carboxylic acids, (with phenol function but without other oxygen function), other esters of salicylic acid and its salts n.e.c. in item no. 2918.2 |
| 291829 | Acids; carboxylic acids, (with phenol function but without other oxygen function), their anhydrides, halides, peroxides, peroxyacids and their derivatives, n.e.c. in item no. 2918.2 |
| 291830 | Acids; carboxylic acids, (with aldehyde or ketone function but without other oxygen function), their anhydrides, halides, peroxides, peroxyacids and their derivatives |
| 291891 | Acids; carboxylic acids, with additional oxygen function (not alcohol, phenol, aldehyde or ketone) and their anhydrides, halides, peroxides and peroxyacids; 2,4,5-t (iso) (2,4,5-trichlorophenoxyacetic acid), its salts and esters |
| 291899 | Acids; carboxylic acids, with additional oxygen function (not alcohol, phenol, aldehyde or ketone) and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives; other than 2,4,5-t (iso) |
What HS code 2918 covers
A carboxylic acid is an organic acid with a special acid group built into its molecule. Most of them sit in the nearby headings. Heading 2918 is for those that also carry a second kind of oxygen group. Chemists often call many of them hydroxy acids.
Some traders write HSN code 2918. It is the same four digits in the same system. The first four digits give the heading. The last two digits of each six-digit code settle the exact product.
Many food, drink, cleaning and medicine ingredients are found here. That is why the codes matter to buyers and sellers in many countries.
HS codes for citric, lactic, tartaric, gluconic and salicylic acid
Most people search by product name, not by number. The good news is that each of these acids has a named line in the table above.
Citric, lactic, tartaric, gluconic and salicylic acid all have their own codes. Aspirin's parent chemical, o-acetylsalicylic acid, has one too.
Look for a split between the free acid and its salts and esters. Citric and tartaric acid are split this way. A citrate or a tartrate is not classed with the acid itself. Lactic and gluconic acid keep the acid, its salts and its esters together in one code.
Match the exact form you ship to the exact wording in the table. If the form is a salt or an ester, read the line for salts and esters.
How to choose the right 2918 subheading
Start with the extra oxygen group in your product. It points you to one of four blocks of codes.
Then read the full wording of the line. Short phrases such as "but without other oxygen function" decide where a product goes. If your product has more than one extra group, it does not belong in the first three blocks.
Each block ends with a catch-all line for products that are not named above it. Use a catch-all only after you have ruled out the named lines. If you are unsure, test your product text in the HS code classifier.
- Alcohol group: 291811 to 291819.
- Phenol group: 291821 to 291829. The last line also takes the anhydrides, halides, peroxides and peroxyacids of these acids.
- Aldehyde or ketone group: 291830 only.
- Any other extra oxygen group: 291891 and 291899. The second line also takes halogenated, sulphonated, nitrated or nitrosated forms.
HS 2918 vs nearby headings 2915, 2916 and 2917
Heading 2917 is for polycarboxylic acids, which have several acid groups.
These three headings sort acids by how many acid groups they have and by the shape of the molecule. Heading 2918 asks a different question: does the acid have an extra oxygen group? If yes, check 2918 first.
Heading 2919 is a different case.
Import and export data for HS code 2918
Once you know your code, you can look at real shipments.
EximDataX shows shipment-level import and export records from official customs sources. Coverage: 43 direct customs feeds plus 184 mirror-derived countries. Named buyers and named suppliers are available in 38 of the 43 direct markets.
Most markets refresh weekly and some refresh daily. You can search by HS code to see who imports and exports a product, and book a free demo.
Related
- Chapter 29 organic chemicals HS codes
- HS 2915 saturated monocarboxylic acids
- HS 2916 unsaturated and cyclic monocarboxylic acids
- HS 2917 polycarboxylic acids
- HS 2919 phosphoric esters
- All HS code chapters
- HS code classifier
- Import data by HS code
- Export data by HS code
- Find buyers of carboxylic acids
- Find suppliers of carboxylic acids
- Book a free demo
Nearby headings in Chapter 29
- 2912Aldehydes, whether or not with other oxygen function; cyclic polymers of…10 codes
- 2913Aldehydes; halogenated, sulphonated, nitrated or nitrosated derivatives of…1 code
- 2914Ketones and quinones; whether or not with other oxygen function, and their…16 codes
- 2915Acids; saturated acyclic monocarboxylic acids and their anhydrides, halides…16 codes
- 2916Acids; unsaturated acyclic monocarboxylic, cyclic monocarboxylic, their…12 codes
- 2917Acids; polycarboxylic acids, their anhydrides, halides, peroxides and…13 codes
- 2919Esters; phosphoric, and their salts, including lactophosphates, their…2 codes
- 2920Esters of other inorganic acids of non-metals (other than of hydrogen…9 codes
- 2921Amine-function compounds18 codes
- 2922Oxygen-function amino-compounds18 codes
- 2923Quaternary ammonium salts and hydroxides; lecithins and other…5 codes
- 2924Carboxyamide-function compounds; amide-function compounds of carbonic acid8 codes
Who ships under 2918?
EximDataX tracks the live import–export records filed under this heading and the 16 codes beneath it: named buyers, suppliers, quantities and values from official customs feeds.
Section VI: Products of the Chemical or Allied Industries, chapters 28–38.
HS Code 2918: common questions
What is HS (HSN) code 2918?
It is a four-digit customs heading for acids with an extra oxygen group. Two more digits name the exact product.
What is the HS code for citric acid?
Citric acid is 291814. Its salts and esters, such as citrates, go in 291815.
What is the HS code for lactic acid?
Use 291811. It takes lactic acid together with its salts and esters.
What is the HS code for tartaric acid?
The free acid is 291812. Its salts and esters are 291813.
What is the HS code for salicylic acid?
Salicylic acid and its salts are 291821.
What is the difference between HS 2917 and 2918?
Heading 2917 is for acids with several acid groups. Heading 2918 is for acids with one extra oxygen group, such as an alcohol or phenol group.
See what your buyers are buying.Then decide.
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