Phenyl Isothiocyanate
Phenyl isothiocyanate (C6H5NCS) contains a phenyl group attached to an isothiocyanate (-N=C=S) functionality, qualifying as an aromatic organo-sulfur compound. It imports under HTS 2930.90.2900 as 'Other' aromatic not specified elsewhere. Primarily used in analytical chemistry for derivatizing amines in HPLC.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If nitrogen function predominates
Isothiocyanates with prominent nitrogen functionality may classify under heading 2929 'Other nitrogen-function compounds' per chapter ordering.
If non-aromatic analogs
Alkyl isothiocyanates fall under non-aromatic organo-sulfur in 2930.90.9000.
If used as synthetic dye intermediate
Chapter exclusions send dye intermediates to Chapter 32 even if chemically qualifying for Chapter 29.
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Import Tips & Compliance
• Include end-use statement specifying analytical reagent use to prevent reclassification as Chapter 38 laboratory reagents
• Provide toxicity data; highly lachrymatory and requires specific UN 2670 shipping classification
• Confirm >98% purity to qualify as chemically defined compound per chapter note (a)
Related Products under HTS 2930.90.29.00
Thiophenol
Thiophenol is an aromatic organo-sulfur compound with the formula C6H5SH, featuring a phenyl ring directly bonded to a thiol group (-SH). It falls under HTS 2930.90.2900 as an aromatic organo-sulfur compound not specifically provided for elsewhere in heading 2930. This chemical is used in organic synthesis and as a reagent in pharmaceutical manufacturing.
Diphenyl Sulfide
Diphenyl sulfide (C6H5)2S is a diaryl sulfide with two phenyl groups attached to a sulfur atom, a classic aromatic organo-sulfur compound. Classified in HTS 2930.90.2900 as 'Other' aromatic organo-sulfur not elsewhere specified in 2930. Used as a solvent, heat transfer fluid, and chemical intermediate.
Benzyl Mercaptan
Benzyl mercaptan (C6H5CH2SH) features a benzyl group (phenylmethyl) with thiol functionality, classified as aromatic organo-sulfur under HTS 2930.90.2900. The direct carbon-sulfur bond and aromatic ring qualify it per heading 2930 scope. Used in flavor/fragrance synthesis and polymer chemistry.
2-Naphthalenethiol
2-Naphthalenethiol (C10H7SH) is a bicyclic aromatic thiol with sulfur directly linked to the naphthalene ring carbon. Falls under HTS 2930.90.2900 as 'Other' aromatic organo-sulfur compounds. Employed in materials science for self-assembled monolayers and as synthetic intermediate.
Triphenyl Phosphine Sulfide
Triphenyl phosphine sulfide ((C6H5)3P=S) contains three aromatic phenyl groups with phosphorus-sulfur functionality, qualifying as aromatic organo-sulfur under HTS 2930.90.2900. Used as ligand in catalysis and polymer synthesis. Chapter notes confirm organo-sulfur with nonmetal directly linked to carbon.
4-Methylthiophenol
4-Methylthiophenol (p-tolyl mercaptan, CH3C6H4SH) is a substituted aromatic thiol with methyl group ortho/para to thiol functionality. Imports as HTS 2930.90.2900 'Other' aromatic organo-sulfur. Key intermediate for pesticides, pharmaceuticals, and antioxidants.