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L-Cysteine Hydrochloride Monohydrate from China

L-Cysteine hydrochloride monohydrate is the monohydrated salt form of the amino acid L-cysteine, a chemically defined organic compound containing a thiol (-SH) group directly linked to carbon. It falls under HTS 2930.90.92.10 as an organo-sulfur compound classified specifically as cysteine hydrochloride. This form is commonly used in pharmaceutical and nutritional applications due to its stability.

Duty Rate — China → United States

112.5%

Rate breakdown

9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter

Import Tips

• Provide detailed chemical analysis certificates confirming purity and monohydrate status to verify classification under 2930.90.92.10

• Ensure proper labeling as a chemically defined compound; mixtures exceeding chapter note limits may shift to Chapter 38

• Comply with FDA import requirements for food/pharma additives, including prior notice via ACE system