Methyl 3-chloro-2-oxopentanoate CAS 28942-53-2
| CAS No. | 28942-53-2 |
| Molecular Formula | C6H9ClO3 |
| Molecular Weight | 164.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Methyl 3-chloro-2-oxopentanoate.
Methyl 3-chloro-2-oxopentanoate (CAS 28942-53-2), molecular formula C6H9ClO3 and molecular weight 164.59 g/mol, is a CATO reference standard with documented purity and traceability.
Methyl 3-chloro-2-oxopentanoate (C6H9ClO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures Methyl 3-chloro-2-oxopentanoate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
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.) | 1965 |
| Halogen Content | Cl-containing |
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Recommended Standards
- Methyl 3-chloro-2,2-dimethyl-3-oxopropanoate (CAS 64507-20-6)
- Methyl 5-chloro-4-oxopentanoate (CAS 62024-36-6)
- Methyl (R)-4-Chloro-3-methyl-4-oxobutanoate (CAS 83509-05-1)
- N'-(2-chloroacetyl)propionohydrazide (CAS 38090-72-1)
- Methyl 3-[(3-butoxypropyl)amino]-2-methylpropanoate (CAS 164026-67-9)
- 2,3-dichlorobuta-1,3-diene (CAS 1653-19-6)
- tert-Butyl 7-ethoxynaphthalen-1-ylcarbamate (CAS 624729-63-1)
- Fusidic acid /Sodium Fusidate Impurity 27 (CAS CATO-C4X-119727)
- 4-tert-Butylphenylacetic Acid (CAS 32857-63-9)
- 7-(3-(Trifluoromethyl)phenyl)pyrazolo[1,5-a]pyrimidine-3-carboxamide (CAS 115930-92-2)
- 4-(4-Fluorophenyl)but-3-yn-2-ol (CAS 229015-32-1)
- 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyridazin-3(2H)-one (CAS 1232361-90-8)
- Mirogabalin Impurity 22 Benzenesulfonic Acid (CAS 138245-15-4(free base))
- Semaglutide impurity 199 (CAS CATO-C4X-2226199)
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