Determine the necessary mass, volume, or concentration for preparing a solution.
≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at 2-8°C,Argon charged Ships Wet ice Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Pubchem Sid | 504758729 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504758729 |
| Canonical Smiles | C1C(CNC1C(=O)O)O |
| IUPAC Name | (2R,4S)-4-hydroxypyrrolidine-2-carboxylic acid |
| InChIKey | PMMYEEVYMWASQN-IUYQGCFVSA-N |
| INCHI | 1S/C5H9NO3/c7-3-1-4(5(8)9)6-2-3/h3-4,6-7H,1-2H2,(H,8,9)/t3-,4+/m0/s1 |
| Isomeric SMILES | C1[C@@H](CN[C@H]1C(=O)O)O |
| WGK Germany | 3 |
| Molecular Weight | 131.13 |
| Reaxy-Rn | 81437 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=81437&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| 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 | Proline and derivatives |
| Alternative Parents | D-alpha-amino acids Pyrrolidine carboxylic acids Secondary alcohols Amino acids 1,2-aminoalcohols Monocarboxylic acids and derivatives Dialkylamines Carboxylic acids Azacyclic compounds Organopnictogen compounds Organic oxides Hydrocarbon derivatives Carbonyl compounds |
| Molecular Framework | Aliphatic heteromonocyclic compounds |
| Substituents | Proline or derivatives - Alpha-amino acid - D-alpha-amino acid - Pyrrolidine carboxylic acid - Pyrrolidine carboxylic acid or derivatives - Pyrrolidine - 1,2-aminoalcohol - Amino acid - Secondary alcohol - Carboxylic acid - Secondary aliphatic amine - Monocarboxylic acid or derivatives - Azacycle - Secondary amine - Organoheterocyclic compound - Organooxygen compound - Organonitrogen compound - Alcohol - Organic nitrogen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organic oxygen compound - Amine - Carbonyl group - Aliphatic heteromonocyclic compound |
| Description | This 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 | 4-hydroxyproline |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
| Certificate of Analysis | Jun 09, 2026 | I134121 | |
| Certificate of Analysis | Jun 09, 2026 | I134121 | |
| Certificate of Analysis | Jun 09, 2026 | I134121 | |
| Certificate of Analysis | Sep 19, 2023 | I134121 | |
| Certificate of Analysis | Mar 15, 2023 | I134121 |
| Sensitivity | Air Sensitive |
|---|---|
| Melt Point(°C) | 260°C |
| Molecular Weight | 131.130 g/mol |
| XLogP3 | -3.300 |
| Hydrogen Bond Donor Count | 3 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 1 |
| Exact Mass | 131.058 Da |
| Monoisotopic Mass | 131.058 Da |
| Topological Polar Surface Area | 69.600 Ų |
| Heavy Atom Count | 9 |
| Formal Charge | 0 |
| Complexity | 125.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 2 |
| 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 |
| 1. Xuexia Xu, Qin Yang, Lanteng Wang, Jie Zheng, Yang Gu, Xiwen Xing, Jiahai Zhou. (2023) Enzymatic hydrolysis of L-azetidine-2-carboxylate ring opening. Catalysis Science & Technology, 13 (13): (3953-3962). [PMID:] [10.1039/D3CY00366C] |