Triphenylmethyl Chloride (Trityl Chloride)
Triphenylmethyl chloride, also known as trityl chloride, is a chemically defined organic compound featuring a triphenylmethyl group attached to a chlorine atom, classifying it as a halogenated derivative of aromatic hydrocarbons under HTS 2903.99.15.00. It is commonly used as a protecting group reagent in organic synthesis, particularly for alcohols and amines in pharmaceutical and fine chemical production.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing metal atoms directly linked to carbon
Organo-inorganic compounds with metals fall under heading 2931 per chapter notes, taking precedence over halogenated hydrocarbons.
If imported as a diluted solution or mixture with solvents
Chapter excludes mixtures not meeting specific purity criteria; such preparations classify as chemical preparations in 3824.
If structurally similar but not specifically triphenylmethyl chloride
Other halogenated aromatic derivatives fall in the residual 2903.99.90 subheading.
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Import Tips & Compliance
• Provide Safety Data Sheets (SDS) and Certificate of Analysis confirming purity as a chemically defined compound; ensure proper UN packaging for corrosive solids (UN3261); declare exact chemical name to avoid misclassification as mixtures
Related Products under HTS 2903.99.15.00
Triphenylmethyl Chloride 98% Pure Technical Grade
This technical grade triphenylmethyl chloride at 98% purity is a separate chemically defined organic compound with minimal impurities, fitting HTS 2903.99.15.00 as a halogenated derivative of aromatic hydrocarbons. It serves as a key intermediate in synthesizing protected nucleosides for oligonucleotide manufacturing.
Trityl Chloride for Pharmaceutical Synthesis
High-purity trityl chloride designed for pharmaceutical applications is a halogenated aromatic hydrocarbon derivative specifically enumerated under HTS 2903.99.15.00. It protects hydroxyl groups in multi-step syntheses of antiviral drugs and APIs.
Triphenylmethyl Chloride with Stabilizer
Triphenylmethyl chloride containing a necessary stabilizer for transport preservation remains classifiable under HTS 2903.99.15.00 per chapter note (f), as the addition does not change its nature as a chemically defined halogenated aromatic derivative. Used in lab-scale organic protections.
NMR-Grade Triphenylmethyl Chloride
Ultra-pure NMR-grade triphenylmethyl chloride is a separate chemically defined compound under HTS 2903.99.15.00, ideal for spectroscopic analysis and research in aromatic halogenation chemistry. Its triphenylmethyl chloride structure fits the specific subheading.
Triphenylmethyl Chloride Anhydrous
Anhydrous triphenylmethyl chloride, free of water to maintain reactivity, is classified as the specific halogenated aromatic derivative in HTS 2903.99.15.00. Essential for moisture-sensitive protections in peptide synthesis.
Trityl Chloride 99+% ACS Reagent
ACS reagent grade trityl chloride at 99+% purity meets chemically defined standards of HTS 2903.99.15.00 for halogenated aromatic hydrocarbons. Used in analytical chemistry for selective group protection.