L-Cysteine Hydrochloride Monohydrate
Despite being a salt, L-Cysteine Hydrochloride Monohydrate qualifies as an oxygen-function amino-acid under HTS 2922.49.4950 when not separately provided for. Used as a dough conditioner in baking and antioxidant in cosmetics.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If explicitly listed cysteine salts
Specific salt provisions in 2922.50 supersede other amino acid headings.
If classified primarily by organo-sulfur thiol function
Chapter notes prioritize organo-sulfur classification for thiol-containing compounds.
If pre-mixed into finished cosmetic preparations
Mixtures for cosmetic use shift to Chapter 33.
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Import Tips & Compliance
• Specify monohydrate water content (8-12%) in CoA to match declared specifications
• GRAS affirmation letters speed FDA review for food contact applications
• Avoid 'pharmaceutical grade' claims unless DMF filed to prevent drug classification
Related Products under HTS 2922.49.49.50
L-Tyrosine
L-Tyrosine is a non-essential amino acid with a phenolic hydroxyl group, classified as an oxygen-function amino-acid under HTS 2922.49.4950. It serves as a precursor for neurotransmitters like dopamine and is used in nutritional supplements and pharmaceuticals.
L-Phenylalanine
L-Phenylalanine is an essential amino acid featuring a benzyl side chain, falling under oxygen-function amino-acids in HTS 2922.49.4950. It's widely used in sports nutrition, PKU management, and as a precursor for aspartame sweetener.
DL-Methionine
DL-Methionine is a synthetic racemic amino acid with a thioether side chain but classified here due to its amino-carboxylic acid structure under HTS 2922.49.4950. Primarily used as an essential amino acid supplement in animal feed and human nutrition.
L-Tryptophan
L-Tryptophan is an essential amino acid with an indole ring containing oxygen-function characteristics, classified under HTS 2922.49.4950. Used in sleep supplements, mood regulation products, and as a precursor for serotonin.
Beta-Alanine
Beta-Alanine is a non-proteinogenic amino acid used in performance supplements like carnosine precursors, classified under other amino acids in HTS 2922.49.4950. Its beta-positioned amino group distinguishes it from alpha-amino acids.
L-Arginine Base
L-Arginine is a conditionally essential amino acid with guanidino group, falling under oxygen-function amino-acids in HTS 2922.49.4950. Widely used in nitric oxide boosters, wound healing formulations, and urea cycle support.