- ▸ 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.
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.
Request SDS →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.
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 200-562-9
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
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.
What is the REACH and TSCA regulatory status of L-Methionine (Methionine)?
L-Methionine (Methionine) (CAS 63-68-3) is subject to U.S. TSCA Inventory requirements; supplying it into the EU requires valid REACH registration ((EC) No 1907/2006). RawSource cannot verify a third-party supplier's registrations — buyers should require documented TSCA and REACH compliance for their jurisdiction and volume (EC 200-562-9).