HS 293010 2-(N,N-Dimethylamino) ethanethiol

What products does HS 293010 cover?

This subheading covers 2-(N,N-Dimethylamino) ethanethiol, a specific organo-sulphur compound. As defined by the World Customs Organization's Harmonized System Nomenclature and reflected in national tariffs like the USITC Harmonized Tariff Schedule (HTS) and the EU TARIC, this entry is precise. It encompasses the pure chemical substance, often used as an intermediate in organic synthesis, particularly in the pharmaceutical and agrochemical industries. The chemical structure, featuring both an amine and a thiol group, is critical for its classification here, distinguishing it from other organo-sulphur compounds or amines.

What falls outside HS 293010?

The following products are excluded from HS 293010: derivatives of 2-(N,N-Dimethylamino) ethanethiol where the fundamental chemical identity has been altered, such as salts, esters, or amides, which would typically fall under other subheadings within Chapter 29 based on their specific functional groups or chemical structure. For instance, a salt of 2-(N,N-Dimethylamino) ethanethiol would generally be classified under a more specific subheading for salts of amines or thiols if one exists, or under a residual subheading for other organo-sulphur compounds or amines. Mixtures containing 2-(N,N-Dimethylamino) ethanethiol, where it is not the predominant component or where the mixture forms a preparation, would also be excluded.

What are common classification mistakes for HS 293010?

A common error is misclassifying derivatives or mixtures containing 2-(N,N-Dimethylamino) ethanethiol directly into this subheading, rather than considering their specific chemical identity or composition. Importers sometimes overlook General Interpretative Rule (GRI) 1, which dictates that classification is determined according to the terms of the headings and any relative section or chapter notes. For example, a salt of this compound, while derived from it, is chemically distinct and would likely fall under a different subheading within Chapter 29, often under a more specific provision for salts of organic compounds. Another mistake is failing to properly identify the exact chemical name and structure, leading to confusion with similar but distinct organo-sulphur compounds.

How should importers classify products under HS 293010?

The correct procedure for classifying products under HS 293010 involves first verifying the precise chemical name and structure of the substance against the WCO Harmonized System Nomenclature and national tariff schedules like the USITC HTS or EU TARIC. Importers and customs brokers should obtain a Certificate of Analysis (CoA) or Safety Data Sheet (SDS) from the manufacturer to confirm the chemical identity, purity, and CAS number. If the product is indeed 2-(N,N-Dimethylamino) ethanethiol in its pure form, then classification under 293010 is appropriate. If it is a derivative, salt, or mixture, further analysis using GRI 1 and subsequent GRIs, along with relevant Chapter 29 notes, will be necessary to determine the correct, more specific subheading.