HS Code for Azelaic acid

Azelaic acid is classified under Harmonized System (HS) code 291713 due to its chemical structure and specific mention within the HS nomenclature. This code falls under Chapter 29, which covers organic chemicals. Specifically, heading 2917 encompasses "Acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their halogenated, sulphonated, nitrated or nitrosated derivatives." Subheading 291713 precisely identifies "Azelaic acid, sebacic acid, their salts and esters." Azelaic acid is an acyclic dicarboxylic acid, meaning it is an organic compound with two carboxyl functional groups and an open-chain structure. Its direct enumeration in the subheading ensures its classification here, distinguishing it from other organic acids.

Products Included

• Azelaic acid (technical grade, pharmaceutical grade)
• Salts of azelaic acid (e.g., potassium azelate, sodium azelate)
• Esters of azelaic acid (e.g., diethyl azelate)
• Sebacic acid, its salts and esters (as specified in the same subheading)

Common Misclassification

Azelaic acid can sometimes be confused with other organic acids. For instance, HS 2915 covers "Saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives." This differs from 291713 because azelaic acid is a polycarboxylic (dicarboxylic) acid, not a monocarboxylic acid. Another potential area of confusion could be with HS 2918, which covers "Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives." However, azelaic acid's structure as a simple acyclic dicarboxylic acid without additional oxygen functions (like hydroxyl or keto groups) directs it specifically to 291713, where it is explicitly named.

FAQ

What is the HS code for Azelaic acid?

The HS code for Azelaic acid is 291713, which covers "Azelaic acid, sebacic acid, their salts and esters."

What are the primary applications of Azelaic acid?

Azelaic acid is primarily used in pharmaceutical and cosmetic industries. It is a common active ingredient in topical treatments for acne, rosacea, and hyperpigmentation due to its anti-inflammatory and antimicrobial properties.