L-Cysteine Hydrochloride Monohydrate
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as free L-cysteine without hydrochloride salt form
Unsalted amino acids with oxygen function classify under heading 2922, which occurs later in numerical order per chapter note 3.
If blended with other amino acids or diluents exceeding purity standards
Mixtures not meeting 'chemically defined' criteria in chapter note (a) fall under Chapter 38 as chemical preparations.
If imported as a salt of a sugar derivative or other Chapter 29 product
Organic salts classify with the parent organic compound per chapter note 5(C)(1), potentially shifting based on base/acid priority.
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Import Tips & Compliance
• 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
Related Products under HTS 2930.90.92.10
DL-Cysteine Hydrochloride
DL-Cysteine hydrochloride is the racemic mixture salt of cysteine, featuring the characteristic organo-sulfur thiol group. Classified under HTS 2930.90.92.10 as it matches the specific subheading for cysteine hydrochloride, a separate chemically defined compound per Chapter 29 notes. Used in biochemical research and as a reducing agent.
Cysteine Hydrochloride Anhydrous USP Grade
Cysteine hydrochloride anhydrous USP grade is a high-purity, water-free salt of cysteine meeting United States Pharmacopeia standards, with the defining C-S bond. It is specifically enumerated under HTS 2930.90.92.10 as cysteine hydrochloride, an organo-sulfur compound. Primarily imported for pharmaceutical manufacturing and dietary supplements.
Pharmaceutical Grade Cysteine HCl
Pharmaceutical grade cysteine HCl is a purified hydrochloride salt of cysteine used in drug synthesis and as an active ingredient. As a chemically defined organo-sulfur compound with direct C-S linkage, it precisely matches HTS 2930.90.92.10. The hydrochloride form enhances solubility for medical applications.
Food Grade Cysteine Hydrochloride
Food grade cysteine hydrochloride serves as a dough conditioner and flavor enhancer in baking, recognized as GRAS by FDA. This chemically defined organo-sulfur salt with thiol functionality is classified under HTS 2930.90.92.10. Purity meets food chemical codex standards for safe consumption.