3-(4'-Aminobenzamido)phenyl-β-hydroxy-ethylsulfone
This is a specific aromatic organo-sulfur compound used primarily as an intermediate in the production of reactive dyes for textiles. It features a sulfone group directly linked to carbon in an aromatic structure, qualifying it under HTS 2930.90.26.00 as one of the named substances in the tariff description. The compound's chemical purity must meet chapter 29 requirements for separate chemically defined organic compounds.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If formulated and put up as synthetic dye for retail sale
Processed into finished synthetic organic dyes, which are excluded from chapter 29 and classified under heading 3204
If imported as mixture with solvents exceeding safety/transport thresholds
Solutions where solvent renders it suitable for specific use fall outside chapter 29 note (e)
If sulfonated derivative lacks direct S-C bond characteristic of organo-sulfur
Sulfonated aromatics without organo-sulfur structure classify under sulfonic acid derivatives in 2904
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Import Tips & Compliance
• Verify chemical identity with Certificates of Analysis (CoA) matching the exact named compound; ensure 99%+ purity to avoid reclassification as mixtures
• Provide end-use statements confirming dye intermediate application to prevent scrutiny under chapter exclusions
• Label containers with UN numbers for hazardous material transport compliance
Related Products under HTS 2930.90.26.00
2-[(4-Aminophenyl)sulfonyl]ethanol, hydrogen sulfate ester
A chemically defined aromatic organo-sulfur compound serving as a dye intermediate, featuring a sulfonyl group linked to both phenyl and ethanol moieties. Classified under HTS 2930.90.26.00 as explicitly named, fitting chapter 29 for separate organic compounds with sulfur directly bound to carbon. Used in textile dyeing processes requiring high purity.
Diphenylthiourea
Diphenylthiourea is an aromatic thiourea derivative (C6H5-NH-CS-NH-C6H5) used as a vulcanization accelerator in rubber production and reagent in organic synthesis. It qualifies under HTS 2930.90.26.00 as a named organo-sulfur compound with thiocarbonyl group directly linked to carbon in aromatic structure. Meets chapter 29 criteria for chemically defined organic compounds.
N,N'-(Dithiodi-2,1-phenylene)bisbenzamide
This disulfide-linked bisbenzamide compound features two aromatic rings connected via S-S bond with amide functionalities, used in pharmaceutical intermediates and polymer chemistry. Explicitly named in HTS 2930.90.26.00 as aromatic organo-sulfur compound per chapter 29 definitions. The dithio structure provides characteristic sulfur-carbon linkages.
Pentachlorothiophenol
Pentachlorothiophenol (C6Cl5-SH) is a highly chlorinated aromatic thiol used as a synthetic intermediate for fungicides, lubricants, and rubber chemicals. Classified under HTS 2930.90.26.00 as named organo-sulfur compound with thiol group directly bound to aromatic carbon. Exclusively fits chapter 29 for pure chemical compounds.
4,4'-Thiodiphenol cyanate
Also known as 4,4'-thiodiphenol cyanate, this compound features a thioether linkage between two phenolic rings with cyanate groups, used in polymer synthesis and flame retardants. Named specifically in HTS 2930.90.26.00 as aromatic organo-sulfur compound per chapter 29 organo-sulfur definitions. The S-C aromatic bonds define its classification.
Diphenylthiourea Technical Grade
Technical grade diphenylthiourea with stabilizer for rubber accelerator applications, maintained as chemically defined compound under chapter 29 note (f). Explicitly named in HTS 2930.90.26.00, distinguishing from mixtures. Purity typically 95-98% for industrial use.