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· · COA & SDS available for every product · Same-day shipping on in-stock items L-Pyroglutamic Acid Methyl Ester - ≥97%(GC) , CAS No.4931-66-2
Synonyms
Methyl ester of L-Pyrrolidonecarboxylic acid | M2198 | methyl(s)-(+)-2 pyrrolidone-5-carboxylate | (+)-L-Pyroglutamic acid methyl ester | (S)-Pyroglutamic Acid Methyl Ester | AS-38129 | H-Pyr-OMe | Piperazine, 1-(2-phenylethyl)- | (S)-methyl 2-pyrrolidone
Storage
Argon charged,Room temperature
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Why this grade ≥97%(GC) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping Argon charged,Room temperature Ships Normal Check lot-specific COA for exact specifications.
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Quality documents SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
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Literature proof Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Specifications Synonyms
Methyl ester of L-Pyrrolidonecarboxylic acid | M2198 | methyl(s)-(+)-2 pyrrolidone-5-carboxylate | (+)-L-Pyroglutamic acid methyl ester | (S)-Pyroglutamic Acid Methyl Ester | AS-38129 | H-Pyr-OMe | Piperazine, 1-(2-phenylethyl)- | (S)-methyl 2-pyrrolidone
Specifications & Purity
≥97%(GC)
Storage
Argon charged, Room temperature
Names and Identifiers Pubchem Sid 488185606 Pubchem Sid Url https://pubchem.ncbi.nlm.nih.gov/substance/488185606 Canonical Smiles COC(=O)C1CCC(=O)N1 IUPAC Name methyl (2S)-5-oxopyrrolidine-2-carboxylate InChIKey HQGPKMSGXAUKHT-BYPYZUCNSA-N INCHI 1S/C6H9NO3/c1-10-6(9)4-2-3-5(8)7-4/h4H,2-3H2,1H3,(H,7,8)/t4-/m0/s1 Isomeric SMILES COC(=O)[C@@H]1CCC(=O)N1 WGK Germany 3 Molecular Weight 143.14 Reaxy-Rn 81950 Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=81950&ln=
Documentation 📋 Safety Data Sheet (SDS) Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS → ✅ Certificate of Analysis (COA) Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA → 📊 Datasheet Quick-reference summary of product specifications and applications.
View datasheet → 🔬 Specification Sheet Full quality attributes and acceptance criteria for this grade.
View spec sheet →
Advanced Data Taxonomic Classification Kingdom Organic compounds Superclass Organic acids and derivatives Class Carboxylic acids and derivatives Subclass Amino acids, peptides, and analogues Intermediate Tree Nodes Amino acids and derivatives - Alpha amino acids and derivatives Direct Parent Alpha amino acid esters Alternative Parents Proline and derivatives Pyrrolidine carboxylic acids Oxoprolines Pyrrolidine-2-ones Methyl esters Secondary carboxylic acid amides Lactams Monocarboxylic acids and derivatives Azacyclic compounds Organopnictogen compounds Organonitrogen compounds Organic oxides Hydrocarbon derivatives Carbonyl compounds Molecular Framework Aliphatic heteromonocyclic compounds Substituents Alpha-amino acid ester - Proline or derivatives - Oxoproline - Pyrrolidine carboxylic acid - Pyrrolidine carboxylic acid or derivatives - 2-pyrrolidone - Pyrrolidone - Methyl ester - Pyrrolidine - Carboxamide group - Carboxylic acid ester - Lactam - Secondary carboxylic acid amide - Monocarboxylic acid or derivatives - Azacycle - Organoheterocyclic compound - Organooxygen compound - Organonitrogen compound - Organic oxide - Organopnictogen compound - Organic oxygen compound - Hydrocarbon derivative - Organic nitrogen compound - Carbonyl group - Aliphatic heteromonocyclic compound Description This compound belongs to the class of organic compounds known as alpha amino acid esters. These are ester derivatives of alpha amino acids. External Descriptors Not available Data sources 1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.
3D Structure Associated Targets(Human) Associated Targets(non-human) Mechanisms of Action Certificates（CoA,COO,BSE/TSE and Analysis Chart) Chemical and Physical Properties Sensitivity Air sensitive Refractive Index 1.49 Specific Rotation[α] 10° (C=1,EtOH) Flash Point(°F) 235.4 °F Flash Point(°C) 113 °C Boil Point(°C) 135 °C Molecular Weight 143.140 g/mol XLogP3 -0.400 Hydrogen Bond Donor Count 1 Hydrogen Bond Acceptor Count 3 Rotatable Bond Count 2 Exact Mass 143.058 Da Monoisotopic Mass 143.058 Da Topological Polar Surface Area 55.400 Ų Heavy Atom Count 10 Formal Charge 0 Complexity 166.000 Isotope Atom Count 0 Defined Atom Stereocenter Count 1 Undefined Atom Stereocenter Count 0 Defined Bond Stereocenter Count 0 Undefined Bond Stereocenter Count 0 The total count of all stereochemical bonds 0 Covalently-Bonded Unit Count 1
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