2903.75.01.00 - Dichloropentafluoropropanes (HCFC-225, 225ca, 225cb)

This HTS classification, 2903.75.01.00, specifically covers dichloropentafluoropropanes, commonly known by their HCFC designations such as HCFC-225, 225ca, and 225cb. These are saturated acyclic hydrocarbons that have been halogenated, containing both chlorine and fluorine atoms. Their chemical structure features a three-carbon propane chain substituted with a total of five fluorine atoms and two chlorine atoms. These compounds are typically used as solvents, cleaning agents, and in refrigeration applications due to their specific chemical properties.

Within the broader category of halogenated derivatives of acyclic hydrocarbons containing two or more different halogens, this subheading differentiates itself by the specific number and type of halogens attached to a propane backbone. Unlike sibling categories such as chlorodifluoromethane (HCFC-22) or dichlorotrifluoroethanes (HCFC-123), which are based on methane and ethane structures respectively and have different halogen compositions, 2903.75.01.00 exclusively pertains to chlorinated and fluorinated propanes with a precise substitution pattern. The distinction lies in the number of carbon atoms in the hydrocarbon chain and the exact count and type of halogens present.

As this is a leaf node within the HTS, there are no further subdivisions. Classification under 2903.75.01.00 is definitive for dichloropentafluoropropanes. Therefore, understanding the precise chemical composition and the characteristic properties associated with these specific dichloropentafluoropropanes is paramount for accurate classification, ensuring that imported or exported goods are correctly identified and duty/regulatory requirements are met.