Xanthen-9-one
Xanthen-9-one, also known as xanthone, is an aromatic heterocyclic compound featuring a central pyrone ring fused with benzene rings, containing oxygen hetero-atoms only. It is used in dye synthesis, pharmaceuticals, and as a fluorescent probe, classified under HTS 2932.99.39.00 as a specifically enumerated product. This pure organic compound meets Chapter 29 requirements for separate chemically defined heterocycles.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If derivatives or analogs not specifically named
Unnamed aromatic heterocyclic oxygen compounds go to the basket provision 2932.99.60.
If used primarily as fluorescent brightening agent
Chapter 29 note (g) excludes synthetic products of this nature used as luminophores, classifying under Chapter 32.
If ether function predominates over heterocycle
Certain aromatic ethers without emphasized heterocyclic ring may classify under heading 2909 for oxygen-function compounds.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Submit NMR or mass spectrometry data to confirm aromatic heterocyclic structure and exclude impurities outside Chapter 29 allowances
• Declare any added stabilizers separately; anti-dusting agents are permitted only if not rendering specific use per note (g)
Related Products under HTS 2932.99.39.00
Benzoin Tetrahydropyranyl Ester
Benzoin tetrahydropyranyl ester is a protected form of benzoin, a heterocyclic compound with oxygen hetero-atoms, used primarily as an intermediate in organic synthesis for pharmaceuticals and fragrances. It falls under HTS 2932.99.39.00 as a specifically named aromatic heterocyclic compound with oxygen hetero-atoms only. This chemical is chemically defined and separate, fitting Chapter 29 note (a).
Pharmaceutical Grade Benzoin Tetrahydropyranyl Ester
High-purity benzoin tetrahydropyranyl ester intended for API synthesis in drug manufacturing, a chemically defined aromatic heterocyclic ester with oxygen hetero-atoms. Classified specifically under HTS 2932.99.39.00 per the tariff description. Excludes mixtures or preparations, aligning with Chapter 29 scope.
Laboratory Research Xanthen-9-one
Purified xanthen-9-one supplied for research labs, featuring oxygen-only heterocyclic structure, explicitly named in HTS 2932.99.39.00. Used in photochemistry and as a synthetic building block, it qualifies as a separate organic compound under Chapter 29.