methyl 5-chloro-2-oxopentanoate CAS 1803596-87-3
| CAS No. | 1803596-87-3 |
| Molecular Formula | C6H9ClO3 |
| Molecular Weight | 164.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of methyl 5-chloro-2-oxopentanoate (C6H9ClO3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies methyl 5-chloro-2-oxopentanoate (CAS 1803596-87-3), a certified reference material (molecular formula C6H9ClO3, MW 164.59 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H9ClO3 |
| Molecular Weight | 164.59 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
Related methyl Standards
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- Methyl 2-chloro-3-oxopentanoate (CAS 114192-09-5)
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Recommended Standards
- 8-Chlorocinnoline (CAS 17404-93-2)
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- 3-Chloro-4-ethynylbenzaldehyde (CAS 1856380-11-4)
- BDTTh26Cl-2Sn (CAS 2239295-69-1)
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- 4-(7-Hydroxy-2-isopropyl-4-oxoquinazolin-3(4H)-yl)benzonitrile (CAS 871814-52-7)
- Lurbinectedin Impurity 35 (CAS CATO-C4X-311435)
- 18:1(2S-OH) Ceramide (CAS 1246298-53-2)
- 7-bromo-2-chloropyrrolo[2,1-f][1,2,4]triazine (CAS 1233186-50-9)
- O5-tert-butyl O4-ethyl 3-bromo-6,7-dihydro-4H-pyrazolo[1,5-a]pyrazine-4,5-dicarboxylate (CAS 1250997-04-6)
- Methyl (2S,3R)-3-amino-2-((tert-butoxycarbonyl)amino)butanoate (CAS 1093190-13-6)
- 2-Bromo-1-(bromomethyl)-3,4-dimethoxybenzene (CAS 147912-63-8)
- Semaglutide Impurity 188 (CAS CATO-C4X-2226188)
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