sodium 5-oxo-L-prolinate - Oily 50% , CAS No.28874-51-3

CAS: 28874-51-3 Cat. No.: L303332 Molecular Weight: 151.09 EC Number: 249-277-1
AVAILABLE TO ORDER
GRADE & PURITY Oily 50%
Synonyms
Sodium pidolate | Sodium 5-oxo-L-prolinate | Sodium pyroglutamate | sodium;(2S)-5-oxopyrrolidine-2-carboxylate | Sodium (S)-5-oxopyrrolidine-2-carboxylate | Sodium L-pyroglutamate | L-Proline, 5-oxo-, monosodium salt | Proline, 5-oxo-, monosodium salt
Storage
Room temperature,Desiccated
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
25g
L303332-25g
3

$9.90

$14.90
Save $5.00 (33.56%)
100g
L303332-100g
4

$21.90

$32.90
Save $11.00 (33.43%)
500g
L303332-500g
2

$65.90

$98.90
Save $33.00 (33.37%)
Enter a quantity for the sizes you want to add.
🧪

Why this grade

Oily 50% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Desiccated Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Sodium pidolate | Sodium 5-oxo-L-prolinate | Sodium pyroglutamate | sodium;(2S)-5-oxopyrrolidine-2-carboxylate | Sodium (S)-5-oxopyrrolidine-2-carboxylate | Sodium L-pyroglutamate | L-Proline, 5-oxo-, monosodium salt | Proline, 5-oxo-, monosodium salt
Specifications & Purity
Oily 50%
Storage
Room temperature, Desiccated
Shipped In
Normal
Names and Identifiers
Pubchem Sid488200437
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488200437
Canonical SmilesC1CC(=O)NC1C(=O)[O-].[Na+]
IUPAC Namesodium;(2S)-5-oxopyrrolidine-2-carboxylate
InChIKeyCRPCXAMJWCDHFM-DFWYDOINSA-M
INCHI1S/C5H7NO3.Na/c7-4-2-1-3(6-4)5(8)9;/h3H,1-2H2,(H,6,7)(H,8,9);/q;+1/p-1/t3-;/m0./s1
Isomeric SMILES C1CC(=O)N[C@@H]1C(=O)[O-].[Na+]
Molecular Weight 151.09
Reaxy-Rn 4038222
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=4038222&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

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
SubclassAmino acids, peptides, and analogues
Intermediate Tree Nodes Amino acids and derivatives - Alpha amino acids and derivatives
Direct ParentProline and derivatives
Alternative Parents Pyrrolidine carboxylic acids  Oxoprolines  Pyrrolidine-2-ones  Secondary carboxylic acid amides  Lactams  Carboxylic acid salts  Monocarboxylic acids and derivatives  Carboxylic acids  Azacyclic compounds  Organonitrogen compounds  Organic zwitterions  Organic sodium salts  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic heteromonocyclic compounds
Substituents Proline or derivatives - Oxoproline - Pyrrolidine carboxylic acid - Pyrrolidine carboxylic acid or derivatives - Pyrrolidone - 2-pyrrolidone - Pyrrolidine - Carboxamide group - Carboxylic acid salt - Lactam - Secondary carboxylic acid amide - Carboxylic acid - Monocarboxylic acid or derivatives - Azacycle - Organic alkali metal salt - Organoheterocyclic compound - Organic nitrogen compound - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Carbonyl group - Organic oxide - Organic oxygen compound - Organic sodium salt - Organic salt - Organic zwitterion - Aliphatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as proline and derivatives. These are compounds containing proline or a derivative thereof resulting from reaction of proline at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

13 results found

Lot NumberCertificate TypeDateItem
H2223454Certificate of AnalysisJun 09, 2025 L303332
H2223466Certificate of AnalysisJun 09, 2025 L303332
A2619140Certificate of AnalysisJun 01, 2024 L303332
C2517178Certificate of AnalysisJun 01, 2024 L303332
F2413157Certificate of AnalysisJun 01, 2024 L303332
F2413158Certificate of AnalysisJun 01, 2024 L303332
F2413159Certificate of AnalysisJun 01, 2024 L303332
F2413160Certificate of AnalysisJun 01, 2024 L303332
F2413161Certificate of AnalysisJun 01, 2024 L303332
J2528218Certificate of AnalysisJun 01, 2024 L303332
A2403015Certificate of AnalysisJun 16, 2022 L303332
H2223453Certificate of AnalysisJun 16, 2022 L303332
H2223465Certificate of AnalysisJun 16, 2022 L303332

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Chemical and Physical Properties
Flash Point(°C)227.8°C
Boil Point(°C)453.1°C
Melt Point(°C)125°C
Molecular Weight151.100 g/mol
XLogP3
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count3
Rotatable Bond Count1
Exact Mass151.025 Da
Monoisotopic Mass151.025 Da
Topological Polar Surface Area69.200 Ų
Heavy Atom Count10
Formal Charge0
Complexity159.000
Isotope Atom Count0
Defined Atom Stereocenter Count1
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count2
Documents & Articles
Citations of This Product
References
1. Runqiu Wu, Bendong Liu, Dongkun Yu, Hongye Qin, Jiahui Yang, Haibin Liu, Guohua Gao.  (2025)  High-Thermopower Thermogalvanic Ionic Hydrogel for Efficient Low-Grade Heat Energy Harvesting in Electronic Devices.  ACS Applied Polymer Materials,      [PMID:] [10.1021/acsapm.5c02573]
Solution Calculators
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