2903.44.10.30 - 1,1,2-trifluoroethane (HFC-143)

This HTS category, specifically HTS Code 2903.44.10.30, encompasses the compound 1,1,2-trifluoroethane, also known by its refrigerant designation HFC-143. This classification falls under the broader group of saturated fluorinated derivatives of acyclic hydrocarbons, which are organic chemicals characterized by the presence of fluorine atoms bonded to a chain of carbon atoms without any ring structures. These substances are often utilized for their specific thermodynamic properties, particularly in refrigeration and air conditioning systems.

It is crucial to distinguish 1,1,2-trifluoroethane (HFC-143) from its sibling categories within the same HTS subheading. HTS Code 2903.44.10.10 covers 1,1,1,2,2-pentafluoroethane (HFC-125), a compound with five fluorine atoms. Similarly, HTS Code 2903.44.10.20 classifies 1,1,1-trifluoroethane (HFC-143a), which differs in the placement of its three fluorine atoms compared to the subject compound. The precise isomerism and number of fluorine atoms are key differentiating factors for accurate classification at this level.

As this HTS code represents a leaf node, there are no further subcategories. Classification to this specific code is definitive for 1,1,2-trifluoroethane (HFC-143) itself, without further subdivision. Importers and exporters should confirm the chemical identity and purity of the substance to ensure correct application of this tariff heading.