2903.77.00.40 - Monochloropentafluoroethane (CFC-115)

This classification, HTS 2903.77.00.40, specifically covers monochloropentafluoroethane, commonly known as CFC-115. This is a perhalogenated acyclic hydrocarbon containing only fluorine and chlorine atoms, where the molecule is entirely substituted with these halogens. Its unique chemical structure and properties, such as its low boiling point and inertness, have historically led to its use in specific industrial applications, primarily as a refrigerant.

It is important to distinguish this compound from its sibling categories. While all fall under halogenated derivatives of acyclic hydrocarbons with multiple different halogens and are perhalogenated with fluorine and chlorine, HTS 2903.77.00.40 is distinct in its precise molecular composition: one chlorine and five fluorine atoms. Sibling categories like trichlorofluoromethane, trichlorotrifluoroethanes, dichlorotetrafluoroethane (CFC-114), and dichlorodifluoromethane represent molecules with different ratios of chlorine and fluorine atoms or different carbon chain lengths.

As this node represents a specific chemical compound and is a leaf node within the HTS structure, there are no further subcategories. The classification criteria here are based on the precise chemical formula and structure of monochloropentafluoroethane (CFC-115), differentiating it from other closely related perhalogenated ethane and methane derivatives.