A sulfur-bearing essential amino acid supplied at feed scale, with food, supplement, and chelation uses. Its principal application is as a feed additive for animal nutrition; it is also used as a nutritional supplement and food flavoring ingredient and as a chelating agent for metals.
▸Feed additive: Methionine supplementation in animal feed.
▸Nutritional supplement: Amino-acid ingredient for foods and supplements.
▸Flavoring agent: Food flavoring ingredient.
▸Chelating agent: Metal chelation.
Physical Properties
Melting Point
536 to 282 °C decomposes 283–284 °C
Boiling Point
sublimes at 186 °C
Density
1.178 at 20 °C
Solubility
Soluble
Vapor Pressure
0.00000052
pH
pH (1% aqueous solution) = 5.6-6.1
Safety & Handling
Full SDS available on request
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
L-Methionine (CAS 63-68-3) is an essential sulfur-containing alpha-amino acid (C5H11NO2S). Its principal application is as a feed additive for animal nutrition; it is also used as a nutritional supplement and food flavoring ingredient and as a chelating agent for metals.
Frequently Asked Questions
What is L-Methionine used for?
L-Methionine (CAS 63-68-3) is an essential sulfur-containing alpha-amino acid (C5H11NO2S). Its principal application is as a methionine feed additive for animal nutrition; it is also used as an amino-acid ingredient in foods and supplements, a food flavoring ingredient, and a chelating agent for metals.
Is L-Methionine the same as metformin?
No. Despite the similar-sounding names they are unrelated compounds. L-methionine is a sulfur-containing amino acid (C5H11NO2S, CAS 63-68-3); metformin is a separate synthetic compound and is not what this product is.
Is L-Methionine water soluble?
L-methionine is soluble in water, which supports its use in feed premixes, liquid supplement systems, and as a soluble chelating amino acid.
What is the CAS number, formula, and HS code?
CAS 63-68-3, formula C5H11NO2S, HS 2930.40 (methionine). Supplied to USP specification; lot-specific Certificate of Analysis and SDS are available on request.
What bulk packaging and order quantities are available?
It is distributed as a USP-grade ingredient in bulk packaging suited to feed and food manufacturing. Submit your target volume and USP/CoA documentation needs through a bulk RFQ for current pricing, pack sizes, and lead time.
Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.
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