4-Terpinenal
4-Terpinenal is a cyclic aldehyde from tea tree oil with a menthane ring structure and formyl group, lacking other oxygen functions. It is categorized under HTS 2912.29.60.90 for other cyclic aldehydes. Utilized in essential oil blends and antimicrobial applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If as part of retail essential oil
Oleoresins/terpenic byproducts for specific uses excluded from Chapter 29.
If certain terpenic aldehydes specified
Some terpene aldehydes have dedicated subheadings before 'other'.
If industrial distilled fractions
Distilled industrial mixtures of aldehydes classified as saccharine/similar in 3823.
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Import Tips & Compliance
• Include origin certificate if from natural essential oil extraction
• Test for isomer purity to avoid mixture reclassification
• Ensure packaging prevents dusting per chapter note (g)
Related Products under HTS 2912.29.60.90
Cinnamaldehyde
Cinnamaldehyde is a cyclic aldehyde derived from cinnamon oil, featuring a benzene ring with an aldehyde group and no other oxygen functions. It falls under HTS 2912.29.60.90 as a cyclic aldehyde without additional oxygen functions, distinct from simpler acyclic aldehydes. Primarily used in fragrances and flavorings.
Citronellal
Citronellal is a cyclic monoterpene aldehyde extracted from citronella oil, containing a cyclohexane ring with an aldehyde group and no other oxygen functions. Classified under HTS 2912.29.60.90 as a 'other' cyclic aldehyde. Used in perfumes, insect repellents, and as a flavor intermediate.
Perillaldehyde
Perillaldehyde is a monoterpenoid cyclic aldehyde from perilla oil, with a cyclohexene ring bearing an aldehyde group and unsaturated bonds but no other oxygen functions. It qualifies for HTS 2912.29.60.90 as an 'other' cyclic aldehyde. Applied in food flavoring and synthetic chemistry.
Hydroxycitronellal
Hydroxycitronellal is a synthetic cyclic aldehyde with a hydroxy group, but classified based on principal aldehyde function without other specified oxygen characteristics. Falls under HTS 2912.29.60.90 as other cyclic aldehydes. Key ingredient in lily-of-the-valley fragrances.
Safranal
Safranal is the primary cyclic aldehyde component of saffron aroma, featuring a cyclohexadiene ring with aldehyde functionality and no other oxygen groups. Classified in HTS 2912.29.60.90 as other cyclic aldehydes. Essential for saffron flavor replication in food industry.
Cuminaldehyde
Cuminaldehyde (4-isopropylbenzaldehyde) is an aromatic cyclic aldehyde from cumin seed oil with benzene ring and aldehyde group, no other oxygens. HTS 2912.29.60.90 covers this as other cyclic aldehyde. Used in curry flavorings and perfumery.