Methyl Chloride Pharmaceutical Grade USP
USP-grade methyl chloride meets pharmaceutical standards for use in sterile alkylation reactions and as a propellant in metered-dose inhalers. Falls under HTS 2903.11.0010 as chemically pure chloromethane. Supplied in small medical gas cylinders.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing heterocyclic ring structure
Chapter 29 heterocyclic compounds take precedence over acyclic derivatives.
If immunological product component
Chapter 29 excludes immunological products consistent with Chapter 30.
If diagnostic reagent solution
Laboratory reagents put up for specific diagnostic use classify in 3822.
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Import Tips & Compliance
• Include USP/NF certificate of analysis and FDA Drug Master File reference
• Segregate from food/consumer shipments due to extreme toxicity (IDLH 1000 ppm)
• Validate supply chain for DMF compliance if used in FDA-regulated products
Related Products under HTS 2903.11.00.10
Chloromethane (Methyl Chloride) 99% Purity
Chloromethane, also known as methyl chloride, is a colorless, flammable gas used primarily as a chemical intermediate in the production of silicone polymers and agricultural chemicals. This 99% purity grade falls under HTS 2903.11.0010 as a saturated chlorinated derivative of acyclic hydrocarbons, specifically chloromethane. It is supplied in pressurized cylinders for industrial use.
Methyl Chloride Refrigerant Grade R-40
Methyl chloride R-40 is a historical refrigerant gas, still used in specialty low-temperature applications and as a methylating agent. Classified under HTS 2903.11.0010 as pure chloromethane, a halogenated acyclic hydrocarbon derivative. Supplied in 50 lb cylinders with refrigerant-grade purity.
Chloromethane Anhydrous Industrial Grade
Anhydrous chloromethane is used in the production of methyl cellulose, quaternary ammonium compounds, and as a solvent in organic synthesis. This industrial grade meets HTS 2903.11.0010 specifications as chemically defined chloromethane without water impurities. Typically shipped in ton cylinders.
Chloromethane Silicone Monomer Precursor
High-purity chloromethane serves as the methylating agent in the direct process for producing dimethyldichlorosilane, the primary silicone monomer. Classified under HTS 2903.11.0010 as it is chemically defined chloromethane used in organosilicon synthesis. Ultra-high purity minimizes side reactions.
Methyl Chloride Agrochemical Intermediate
Chloromethane is reacted with alcohols to produce methyl esters used in herbicide and insecticide synthesis. This agrochem grade meets HTS 2903.11.0010 as pure chloromethane, the saturated chlorinated acyclic hydrocarbon. Supplied in ISO tank containers.
Electronic Grade Chloromethane 99.999%
Ultra-high purity (6N) chloromethane used in vapor phase epitaxial growth of compound semiconductors and as a dopant source. Meets stringent HTS 2903.11.0010 classification as chemically defined chloromethane for electronics manufacturing. Lecker-free cylinders.