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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not specifically cysteine hydrochloride but another organo-sulfur compound
Other organo-sulfur compounds fall under the residual 2930.90.90 subheading.
If imported as diagnostic laboratory reagents
Chapter 29 excludes certain lab reagents classifiable in 3822.
If the sulfur is not directly carbon-linked or classified as nitrogen-heterocyclic
Organo-sulfur definition requires direct C-S bond per heading 2930 note; others go to 2929.
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Import Tips & Compliance
• Include USP certificate of analysis proving ≥98% purity to confirm 'chemically defined' status
• Declare anhydrous form explicitly; mislabeling as monohydrate risks audit
• For pharma imports, file with FDA and ensure DMF (Drug Master File) availability
Related Products under HTS 2930.90.92.10
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.
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.
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.