Hydroxy Analog of Methionine (MHA)
2-Hydroxy-4-(methylthio)butanoic acid, known as MHA, is a liquid methionine analog functioning as a rumen-stable sulfur source for ruminant feed. Though chemically distinct, it is often associated with methionine classification under HTS 2930.40.00.00 for organo-sulfur feed compounds.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified by saturated acyclic carboxylic acid structure
Core chemical structure as sulfur-substituted carboxylic acid may fall under heading 2915.
If deemed other organo-sulfur compounds
Non-methionine organo-sulfur feed additives classify elsewhere in heading 2930.
If sold as concentrated feed solution
Liquid preparations for feed use shift to Chapter 38 chemical mixtures.
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Import Tips & Compliance
• Submit stability data and equivalence studies to CBP; use UN-approved drums for liquid transport; common issue: viscosity changes in transit affecting assay results
Related Products under HTS 2930.40.00.00
DL-Methionine
DL-Methionine is a synthetic racemic mixture of D- and L-methionine, a chemically defined organo-sulfur amino acid essential for animal nutrition. It falls under HTS 2930.40.00.00 as methionine, used primarily as a feed additive to supplement methionine-deficient diets in poultry and swine.
L-Methionine USP Grade
L-Methionine USP Grade is the natural levorotatory form of methionine, meeting United States Pharmacopeia standards for purity and use in medical and nutritional supplements. Classified under HTS 2930.40.00.00 as a separate chemically defined organo-sulfur compound.
Methionine Feed Grade 99%
Methionine Feed Grade 99% is a high-purity powder formulation of DL-methionine designed for livestock nutrition, containing minimal impurities as per chapter note (a). It is classified under HTS 2930.40.00.00 for methionine organo-sulfur compounds.
L-Methionine with Stabilizer
L-Methionine powder with added anticaking stabilizer for preservation during transport, as permitted by chapter note (f). This chemically defined organo-sulfur compound remains classified under HTS 2930.40.00.00.
Methionine Calcium Salt
Calcium salt of DL-methionine, an organo-sulfur compound where the salt form follows the parent methionine per chapter note on inorganic salts (C)(1). Classified under HTS 2930.40.00.00.
Dry Methionine Powder 98.5%
Dry DL-Methionine powder at 98.5% purity with minor impurities, qualifying as chemically defined under chapter note (a). Used in pet food formulations, classified under HTS 2930.40.00.00.