p-Toluenesulfonyl Chloride
p-Toluenesulfonyl chloride (TsCl) is a sulfonyl chloride derivative of toluene, specifically named in HTS 2904.10.10.00 as a sulfonated hydrocarbon derivative. It functions as a key protecting group reagent in organic synthesis.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If generic sulfonated derivatives not specifically listed
Explicit naming in 2904.10.10.00 supersedes generic classification.
If containing sulfur directly linked to carbon beyond sulfo group
Chapter notes exclude sulfonated derivatives from organo-sulfur heading 2930.
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Import Tips & Compliance
• Classify as UN 3261 corrosive solid; moisture-proof packaging prevents hydrolysis during transport
• Provide synthesis pathway documentation to confirm it's the pure chloride, not sulfonamide
Related Products under HTS 2904.10.10.00
m-Benzenedisulfonic Acid Sodium Salt
m-Benzenedisulfonic acid sodium salt is a sulfonated derivative of benzene with two sulfo groups and sodium counterions, explicitly listed under HTS 2904.10.10.00. It serves as an intermediate in dye manufacturing and chemical synthesis.
1,5-Naphthalenedisulfonic Acid
1,5-Naphthalenedisulfonic acid is a di-sulfonated naphthalene derivative explicitly provided for in HTS 2904.10.10.00 as a sulfonated hydrocarbon with only sulfo groups. It is widely used in the production of azo dyes and optical brighteners.
3,5-Naphthalenedisulfonic Acid
While not explicitly named, 3,5-naphthalenedisulfonic acid falls under HTS 2904.10.10.00 as a naphthalene derivative containing only sulfo groups, consistent with the heading's scope for disulfonic acids. Used in dye coupling and surfactant production.
TsCl 99% Pure for Synthesis
High purity p-toluenesulfonyl chloride (99%) for laboratory synthesis, classified under HTS 2904.10.10.00 as the specifically named sulfonated toluene derivative. Essential for alcohol and amine protection in pharmaceutical intermediates.
Sodium m-Benzenedisulfonate Technical Grade
Technical grade sodium m-benzenedisulfonate is the sodium salt form of m-benzenedisulfonic acid, explicitly covered by HTS 2904.10.10.00 for sulfonated aromatic derivatives. Primarily used in wetting agents and dye intermediates.