Triphenylmethyl chloride
Halogenated derivatives of hydrocarbons: > Halogenated derivatives of aromatic hydrocarbons: > Other: > Triphenylmethyl chloride
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
Products classified 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.
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.
Triphenylmethyl Chloride in Toluene Solution
A transport solution of triphenylmethyl chloride in toluene qualifies under HTS 2903.99.15.00 per chapter note (e), as the solvent is solely for safety/transport without specific use adaptation. Applied in automated synthesis reactors.
High-Purity Trityl Chloride for Oligonucleotide Production
Specially purified trityl chloride for dimethoxytrityl (DMT) group attachment in oligonucleotide synthesis is the pure compound of HTS 2903.99.15.00. Its role as a chemically defined halide supports biotech manufacturing.
Triphenylmethyl Chloride with Anti-Dusting Agent
Triphenylmethyl chloride with added anti-dusting agent for safety identification remains under HTS 2903.99.15.00 per chapter note (g), not rendered specific-use. Used in industrial fine chemical batching.