Quinoxaline
Quinoxaline features a benzene ring fused to pyrazine, used in organic electronics and antibiotic synthesis. Classified under HTS 2934.99.44.00 as aromatic heterocyclic compound. Exhibits biological activity against mycobacteria.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified under pyrazine derivatives
Quinoxaline's pyrazine component triggers specific heading 2933 classification.
If when used as synthetic organic luminophore
Luminous materials classified in Chapter 32 per chapter exclusion note 2(g).
If used as rubber accelerator intermediate
Certain heterocycles for rubber processing fall to Chapter 38.
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Import Tips & Compliance
• CAS 91-19-0 documentation essential for positive identification
• Sublimes at 119°C - specify temperature-controlled shipping
• Declare OLED/organic semiconductor applications if applicable
Related Products under HTS 2934.99.44.00
Quinazoline
Quinazoline is a bicyclic aromatic heterocyclic compound with a fused benzene and pyrimidine ring, classified under HTS 2934.99.44.00 as an other aromatic heterocyclic compound. It serves as a key intermediate in pharmaceutical synthesis for drugs targeting cancer and neurological disorders.
Pteridine
Pteridine is a fused heterocyclic system containing pyrimidine and pyrazine rings, essential for biochemical research and vitamin synthesis. Classified under HTS 2934.99.44.00 as an aromatic heterocyclic compound not elsewhere specified. Used in folate and flavin coenzyme production.
Purine
Purine is a fundamental aromatic heterocyclic compound forming the basis of adenine and guanine nucleobases. Falls under HTS 2934.99.44.00 as other aromatic heterocyclic compounds. Critical for nucleic acid research and pharmaceutical intermediates.
1,8-Naphthyridine
1,8-Naphthyridine is a rigid bicyclic aromatic system used in coordination chemistry and antibiotic synthesis. Classified under HTS 2934.99.44.00 as other aromatic heterocyclic compounds. Its chelating properties make it valuable for metal complex formation.
Phenanthroline
1,10-Phenanthroline is a tricyclic aromatic heterocyclic compound famous for its metal chelation properties in analytical chemistry. Classified under HTS 2934.99.44.00 as other aromatic heterocycles. Widely used to form colored complexes with iron(II) for titration.
Acridine
Acridine is a tricyclic aromatic heterocycle with a central pyridine ring, used in dye chemistry and antimalarial drug development. Falls under HTS 2934.99.44.00 as other aromatic heterocyclic compound. Exhibits fluorescence properties valuable for biological staining.