HS Code for Lactones
Lactones are classified under HS code 2932.20. These are heterocyclic compounds where the hetero-atom is oxygen. Specifically, lactones are cyclic esters formed by the intramolecular condensation of a hydroxy acid. Heading 2932 covers heterocyclic compounds with oxygen hetero-atom(s) only. Subheading 2932.20 is specifically designated for lactones. This includes a wide variety of compounds used in fragrances, pharmaceuticals, and polymer chemistry. The classification depends on the presence of the lactone ring structure. If the compound contains other hetero-atoms like nitrogen or sulfur in the ring, it would move to headings 2933 or 2934. The "unfused furan ring" mention in the broader heading description refers to the structural requirements of the 2932 category, but 2932.20 specifically isolates the lactone functional group. Many lactones are naturally occurring and contribute to the aroma of fruits and dairy products, while others, like gamma-butyrolactone (GBL), are significant industrial solvents and chemical intermediates. The classification remains consistent regardless of whether the lactone is synthetic or isolated from natural sources.
Products Included
- Coumarin (1,2-benzopyrone)
- Phenolphthalein
- Gamma-butyrolactone (GBL)
- Gluconolactone
- Santonic acid lactones
- Nonalactone and undecalactone (flavoring agents)
- Methylcoumarins
Common Misclassification
Lactones are often confused with other heterocyclic compounds. For instance, compounds with an unfused furan ring that are not lactones fall under 2932.11 to 2932.19. If the ring structure includes nitrogen, it must be classified under 2933. Additionally, certain lactones used as medicaments in measured doses would be classified in Chapter 30 (3004), rather than the chemical chapter 29.
FAQ
What is the HS code for lactones?
The HS code for lactones is 2932.20, which is a subheading for heterocyclic compounds with oxygen hetero-atom(s) only.
Is phenolphthalein classified as a lactone?
Yes, phenolphthalein is a well-known chemical indicator that contains a lactone ring and is classified under HS code 2932.20.
Industry
Frequently Asked Questions
What is the HS code for Lactones?
The HS code for Lactones is 293220 (Heterocyclic compounds; with oxygen hetero-atom(s) only, containing an unfused furan ring (whether or not hydrogenated) in the structure, lactones).
How do I classify Lactones for customs?
Lactones is classified under HS code 293220 — Heterocyclic compounds; with oxygen hetero-atom(s) only, containing an unfused furan ring (whether or not hydrogenated) in the structure, lactones. This is a 6-digit subheading level code.
Is the HS code for Lactones the same in all countries?
The base HS code 293220 for Lactones is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.