Phenylarsonic Acid
Phenylarsonic acid (C6H5AsO3H2) is an aromatic organoarsenic acid with direct As-C linkage. It is classified under HTS 2931.90.90.40 as other organo-inorganic compounds. Applied in pharmaceutical synthesis and veterinary feed additives.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If by aromatic carboxylic acid function
If acid group prioritizes over arsenic, falls to later oxygen-function heading per classification rule.
If veterinary hormone-like use
2937 for hormones, but growth promoters may analogize; specific exclusions apply.
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Import Tips & Compliance
• FDA prior approval for animal drug use; include batch analysis showing >98% purity
• Avoid bulk mixtures to prevent 3824 reclassification
Related Products under HTS 2931.90.90.40
Tris(2-chlorovinyl)arsine
Tris(2-chlorovinyl)arsine is a highly toxic organo-arsenic compound containing arsenic directly linked to carbon atoms in vinyl groups with chlorine substituents. It falls under HTS 2931.90.90.40 as a specific other organo-inorganic compound per Chapter 29 notes, distinct from sulfonated or halogenated derivatives classified elsewhere. Primarily used in chemical synthesis and historical chemical warfare agent production.
Tris(2-chlorovinyl)arsine Oxide
A derivative of tris(2-chlorovinyl)arsine featuring an oxide group on arsenic, maintaining direct As-C bonds with chlorovinyl substituents. Classified under HTS 2931.90.90.40 as other organo-inorganic compounds per Chapter 29 definitions for arsenic-containing organics. Used in specialized chemical research and synthesis.
Cacodylic Acid (Dimethylarsinic Acid)
Cacodylic acid is an organoarsenic compound with two methyl groups and carboxylic acid function directly bound to arsenic. It qualifies under HTS 2931.90.90.40 as other organo-inorganic per Chapter 29 note on nonmetal/metal directly linked to carbon. Commonly used as herbicide and in wood preservation.
Methylarsonic Acid
Methylarsonic acid (CH3AsO(OH)2) is a simple organoarsenic compound with direct As-C bond and acid groups. Falls under HTS 2931.90.90.40 as other organo-inorganic compounds not covered by prior specific subheadings. Employed in agriculture as herbicide and cotton desiccant.
Triphenylarsine
Triphenylarsine (AsPh3) features three phenyl groups directly bound to arsenic, qualifying as organo-inorganic under Chapter 29 notes. Classified in HTS 2931.90.90.40 as other such compounds beyond specific subheadings. Serves as ligand in organometallic catalysis and organic synthesis.
Diphenylchloroarsine
Diphenylchloroarsine contains two phenyl groups and one chlorine directly on arsenic, with As-C bonds defining its organo-inorganic nature. HTS 2931.90.90.40 covers it as other organo-inorganic, per exclusion of simple halogenated from this heading. Historical use as chemical warfare agent and analytical reagent.