What is the HS code for oxalic acid?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
HS-4 · Heading
2917 — Acids; polycarboxylic acids, their anhydrides, halides, peroxides and peroxy-acids; their halogenated, sulphonated, nitrated or nitrosated derivatives
Chapter 29: Organic chemicals
Plain-language overview
Use HS-4 2917 when importing polycarboxylic acids like oxalic acid or maleic anhydride. For example, if you're bringing in oxalic acid for use in cleaning products, this code is relevant. Understanding the specific subheadings will help you classify your product accurately.
When deciding between HS-6 291711 for oxalic acid and HS-6 291712 for adipic acid, consider the chemical structure and intended use. Oxalic acid is often used in rust removal, while adipic acid is common in the production of nylon. Make sure to match your product to the correct subheading.
If your product is a derivative of phthalic acid, you may need to choose between HS-6 291735 for phthalic anhydride or HS-6 291736 for terephthalic acid. Terephthalic acid is primarily used in polyester production, while phthalic anhydride is utilized in plasticizers and resins.
Keywords & topics
Useful terms traders and brokers use for this HS-4 heading.
polycarboxylic acids · oxalic acid imports · adipic acid classification · maleic anhydride shipping · phthalic anhydride uses · terephthalic acid applications · chemical import codes · acids and derivatives · HS code for acids · organic chemicals import
Examples
Drawn from the official tariff wording for this HS-4 heading. Always confirm against your published schedule and legal notes.
- Oxalic acid for cleaning agents
- Adipic acid for nylon production
- Maleic anhydride for coatings
- Dioctyl orthophthalate as a plasticizer
- Terephthalic acid for polyester fibers
- Dimethyl terephthalate for PET production
Common questions
Frequent classification questions with short practical guidance.
How to classify adipic acid for import?
Write down material, use, and product form first, then compare nearby lines before you lock the code.
What are the uses of maleic anhydride?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Which HS code for phthalic anhydride?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
How to determine the right HS subheading?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
What are the applications of terephthalic acid?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Related topics
Common real-world topics that come up during code comparison.
how to classify polycarboxylic acids for import
Check the exact product specs and destination-country tariff notes before finalizing the code.
differences between oxalic acid and adipic acid
Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.
uses of maleic anhydride in industry
Use this topic to narrow your shortlist, then validate the final code against legal wording.
choosing the correct HS code for acids
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importing phthalic anhydride regulations
Check the exact product specs and destination-country tariff notes before finalizing the code.
applications of terephthalic acid in textiles
Use this topic to narrow your shortlist, then validate the final code against legal wording.
understanding HS-4 2917 for brokers
Use this topic to narrow your shortlist, then validate the final code against legal wording.
shipping guidelines for organic acids
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Questions & answers
For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.
- What types of products fall under HS-4 2917?
- HS-4 2917 covers various polycarboxylic acids, including oxalic acid, adipic acid, and maleic anhydride, along with their derivatives.
- How do I choose the correct HS-6 subheading?
- Select the HS-6 subheading based on the specific acid you are importing, its chemical structure, and its intended use.
- Are there any special import regulations for these acids?
- Check national regulations as some acids may have restrictions or require specific documentation for import.
- What is the difference between acyclic and aromatic polycarboxylic acids?
- Acyclic polycarboxylic acids have a linear structure, while aromatic ones contain a benzene ring, affecting their properties and applications.
- Can I use one HS code for multiple types of acids?
- No, each type of acid has a distinct HS code; ensure you classify each product accurately to avoid customs issues.
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Heading-browse mode uses HS-6 291700 (first line of this block).
HS-6 subheadings (13)
- 291711Acids; acyclic polycarboxylic acids; oxalic acid, its salts and esters
- 291712Acids; acyclic polycarboxylic acids; adipic acid, its salts and esters
- 291713Acids; acyclic polycarboxylic acids; azelaic acid, sebacic acid, their salts and esters
- 291714Acids; acyclic polycarboxylic acids; maleic anhydride
- 291719Acids; acyclic polycarboxylic acids; n.e.c. in item no. 2917.1
- 291720Acids; cyclanic, cyclenic or cycloterpenic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and derivatives
- 291732Acids; aromatic polycarboxylic acids; dioctyl orthophthalates
- 291733Acids; aromatic polycarboxylic acids; dinonyl or didecyl orthophthalates
- 291734Acids; aromatic polycarboxylic acids; other esters of orthophthalic acids
- 291735Acids; aromatic polycarboxylic acids; phthalic anhydride
- 291736Acids; aromatic polycarboxylic acids; terephthalic acid and its salts
- 291737Acids; aromatic polycarboxylic acids; dimethyl terephthalate
- 291739Acids; aromatic polycarboxylic acids; n.e.c. in item no. 2917.3