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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If supplied as heterocyclic derivative
Certain modified trityl compounds with heterocyclic rings classify under heading 2933 for heterocyclic compounds.
If primarily an ether function rather than halide
Chapter notes prioritize oxygen-function headings (2909) over halides if ether group predominates.
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Import Tips & Compliance
• Obtain FDA Drug Master File references if destined for pharma use; ensure labeling meets GHS standards for irritants; avoid bulk imports without prior EPA TSCA notification
Related Products under HTS 2903.99.15.00
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.
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.
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.