2931.59.00.30 - P-Alkyl (≤ C10, incl. cycloalkyl) N-(1-(dialkyl (≤ C10, incl. cycloalkyl) amino))alkylidene (H or ≤C10, incl. cycloalkyl) phosphonamidic fluorides and corresponding alkylated or protonated salts

This HTS classification, 2931.59.00.30, pertains to a specific group of organo-phosphorous compounds. It encompasses phosphonamidic fluorides where the phosphorus atom is bonded to an alkyl or cycloalkyl group of ten or fewer carbon atoms, and also to an N-(1-(dialkyl (≤ C10, including cycloalkyl) amino))alkylidene group. This category also includes corresponding alkylated or protonated salts of these compounds. These are complex organic molecules often used in specialized chemical applications.

Distinguishing this category from its siblings is crucial for accurate classification. For instance, while sibling codes like 2931.59.00.10 and 2931.59.00.15 cover phosphonofluoridates and phosphonyl difluorides respectively, this code specifically addresses phosphonamidic fluorides with a distinct aminoalkylidene substituent. Codes 2931.59.00.20 and 2931.59.00.25 are for methylphosphonochloridates, differing in their ester group and leaving atom. Similarly, 2931.59.00.35 covers a different phosphonamidofluoridate structure with a bis(diethylamino)methylene group. The defining characteristic of 2931.59.00.30 lies in the specific structure of the nitrogen-containing substituent attached to the phosphorus atom.

As 2931.59.00.30 is a leaf node within the HTS structure, there are no further subdivisions. Therefore, classification under this code relies heavily on the precise chemical structure as defined by the description. Importers and exporters should verify that their goods precisely match the outlined chemical formula and substituent groups to ensure correct duty assessment and compliance.