Triphenylphosphine Oxide
Triphenylphosphine oxide is an organophosphorus compound used as a catalyst and ligand in organic synthesis. Classified under HTS 2931.90.60.00 as an aromatic organo-inorganic compound with phosphorus directly bonded to carbon. Common in pharmaceutical and fine chemical manufacturing.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If tetraalkyl phosphonium compounds
Specific phosphonium salts have earlier provisions; triphenyl derivatives classified as 'other aromatic'.
If when used as pharmaceutical intermediate
Certain heterocyclic phosphorus compounds may shift to Chapter 29 subchapter for specific uses.
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Import Tips & Compliance
• Include phosphine oxide analysis certificate; comply with DOT UN 2811 packaging; check end-use declarations for catalyst applications
Related Products under HTS 2931.90.60.00
Tributyltin Oxide
Tributyltin oxide is an aromatic organotin compound used as a biocide and antifouling agent in marine paints. It falls under HTS 2931.90.60.00 as an other aromatic organo-inorganic compound where tin is directly linked to carbon atoms. This classification applies to its use in industrial applications beyond simple alkyl halides.
Diphenyliodonium Tetrafluoroborate
Diphenyliodonium tetrafluoroborate serves as a photoinitiator in UV-curable inks and coatings. This aromatic organo-iodine compound with iodine-carbon bonds fits HTS 2931.90.60.00 as other aromatic organo-inorganic compounds. Essential for polymer chemistry applications.
Trimethylsilyl Iodide
Trimethylsilyl iodide functions as a silylating agent and cleaving reagent in organic synthesis. As an aromatic-modified organosilicon compound with silicon-carbon bonds, it qualifies under HTS 2931.90.60.00. Used extensively in carbohydrate and nucleotide chemistry.
Triphenylantimony Dichloride
Triphenylantimony dichloride acts as a catalyst in polymerization reactions and flame retardant synthesis. This aromatic organo-antimony compound with Sb-C bonds is classified under HTS 2931.90.60.00 as other aromatic organo-inorganic compounds.
Cyclopentadienyliron Dicarbonyl Dimer
This ferrocene derivative serves as a precursor for organometallic catalysts and materials science applications. The aromatic cyclopentadienyl-iron bonds qualify it for HTS 2931.90.60.00 as an other aromatic organo-inorganic compound.
Triphenylborane
Triphenylborane functions as a Lewis acid catalyst and reagent in organic transformations like hydroboration. As an aromatic organoboron compound with B-C bonds, it falls under HTS 2931.90.60.00 classification.