2-(N-Methyl-N-ethylamino)ethanethiol from China
Mixed methyl-ethyl substituted aminoethane-2-thiol, a chemically defined organo-sulfur compound. Fits HTS 2930.90.92.22 criteria using permitted dialkyl groups (methyl, ethyl) explicitly listed in heading description. Serves as building block for nitrogen-sulfur chelators.
Duty Rate — China → United States
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Confirm via mass spec no dimethyl impurity exceeding 0.1%; trace excluded isomers disqualify
• Use glass-lined containers; corrosive to metals due to thiol reactivity
• Pre-register under TSCA if research quantities; industrial intermediates exempt