(2R,4S)-4-hydroxypiperidine-2-carboxylic acid CAS 126641-65-4
| CAS No. | 126641-65-4 |
| Molecular Formula | C6H11NO3 |
| Molecular Weight | 145.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 145.16 g/mol gives (2R,4S)-4-hydroxypiperidine-2-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(2R,4S)-4-hydroxypiperidine-2-carboxylic acid (CAS 126641-65-4), molecular formula C6H11NO3 and molecular weight 145.16 g/mol, is a CATO reference standard with documented purity and traceability.
(2R,4S)-4-hydroxypiperidine-2-carboxylic acid (C6H11NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), (2R,4S)-4-hydroxypiperidine-2-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H11NO3 |
| Molecular Weight | 145.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 3-Propionamidopropanoic acid (CAS 126424-88-2)
- 2-(1-methyl-1H-1,2,3-triazol-5-yl)acetic acid (CAS 1267127-29-6)
- Methyl 3-Morpholinecarboxylate (CAS 126264-49-1)
- 2-(5-methyl-1H-1,2,3-triazol-1-yl)acetic acid (CAS 1267908-61-1)
- (5-Fluoroindolin-2-yl)methanol (CAS 1391119-26-8)
- 8-Oxo-7-azaspiro[3.5]nonane-5-carboxylic acid (CAS 2098142-54-0)
- 6,7-Dimethoxy-N-(4-morpholinophenyl)quinazolin-4-amine (CAS 477855-21-3)
- (S)-4-(2-Hydroxy-2-methylpropyl)oxazolidin-2-one (CAS 603142-90-1)
- 2-(((3-Oxo-2,3-dihydro-1H-pyrazol-4-yl)methylene)amino)benzonitrile (CAS 339020-78-9)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-(diethylamino)furan-2-yl)boronate (CAS 2223049-95-2)
- [2,2'-Bipyridin]-5-ylmethanamine (CAS 220339-96-8)
- N-((5-Fluoro-1,3-dimethyl-1H-pyrazol-4-yl)methyl)-2-morpholinoethan-1-amine hydrochloride (CAS 1856066-44-8)
- 3-Methylisoquinolin-8-amine (CAS 80066-65-5)
- Semaglutide impurity 45 (CAS CATO-C4X-222645)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com