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CAS Number: 63-68-3
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CAS Number
63-68-3
PubChem CID
6137
Molecular Formula
C5H11NO2S
Molecular Weight
149.21 g/mol
Exact Mass
149.05105
InChIKey
FFEARJCKVFRZRR-BYPYZUCNSA-N
IUPAC Name
(2S)-2-amino-4-methylsulfanylbutanoic acid
SMILES String
CSCC[C@@H](C(=O)O)N
Appearance
Minute hexagonal plates from dilute alcohol. (NTP, 1992)
Melting Point
283–284 °C
Density
1.18 g/cm³
pKa
2.28
Vapor Pressure
Estimated very low; unit not specified
Properties are provided as catalog reference data and may be confirmed through supplier documentation when required.
Structural features
L-Methionine (CAS 63-68-3) is listed in the Catalysts and Ligands portfolio, with molecular formula C5H11NO2S and molecular weight 149. 21 g/mol.
Sourcing context
Catalog reference for RFQ preparation, supplier confirmation, and research chemical sourcing review.
Research use context
Intended for catalysis development, ligand screening, and synthetic method research.
Documentation needs
COA/SDS status, availability, lead time, pack size, and shipment documentation can be confirmed during quotation.
ChEMBL reports experimental activity evidence for: D(1A) dopamine receptor (Homo sapiens) — 2 assays; Large neutral amino acids transporter small subunit 1 (Homo sapiens) — 2 assays; Prostaglandin G/H synthase 1 (Homo sapiens) — 2 assays; Protein deacetylase HDAC6 (Homo sapiens) — 2 assays; Thromboxane A2 receptor (Homo sapiens) — 2 assays. These records describe research assays and do not establish therapeutic efficacy or clinical use.
D(1A) dopamine receptor
Homo sapiens · SINGLE PROTEIN · 2 qualifying assays · 1 documents
Experimental evidence source: ChEMBL
Large neutral amino acids transporter small subunit 1
Homo sapiens · SINGLE PROTEIN · 2 qualifying assays · 2 documents
Experimental evidence source: ChEMBL
Prostaglandin G/H synthase 1
Homo sapiens · SINGLE PROTEIN · 2 qualifying assays · 1 documents
Experimental evidence source: ChEMBL
Protein deacetylase HDAC6
Homo sapiens · SINGLE PROTEIN · 2 qualifying assays · 1 documents
Experimental evidence source: ChEMBL
Thromboxane A2 receptor
Homo sapiens · SINGLE PROTEIN · 2 qualifying assays · 1 documents
Experimental evidence source: ChEMBL
Safety and handling reference content is available through documentation requests.
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Preliminary Safety Reference
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Safety Reference / SDS RequestCatalog navigation
Other public CAS pages in this catalog. These links support navigation across additional intermediates and do not imply equivalence, availability, or shared use.
L-Methionine is identified by CAS 63-68-3, with molecular formula C5H11NO2S, molecular weight 149.21, InChIKey FFEARJCKVFRZRR-BYPYZUCNSA-N.
ChEMBL contains qualifying experimental assay evidence associated with D(1A) dopamine receptor, Large neutral amino acids transporter small subunit 1, Prostaglandin G/H synthase 1, Protein deacetylase HDAC6, Thromboxane A2 receptor. These records do not establish therapeutic efficacy or clinical use.
Yes. Submit an RFQ and specify COA requirements. Lot-specific COA depends on supplier confirmation.
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