Methyl (R)-4-Chloro-3-methyl-4-oxobutanoate CAS 83509-05-1
| CAS No. | 83509-05-1 |
| Molecular Formula | C6H9ClO3 |
| Molecular Weight | 164.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Methyl (R)-4-Chloro-3-methyl-4-oxobutanoate (CAS 83509-05-1), molecular formula C6H9ClO3 and molecular weight 164.59 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H9ClO3, Methyl (R)-4-Chloro-3-methyl-4-oxobutanoate contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 164.59 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures Methyl (R)-4-Chloro-3-methyl-4-oxobutanoate 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.) | 1980 |
| Halogen Content | Cl-containing |
Recommended Standards
- 1-Chlorophthalazine (CAS 5784-45-2)
- Methyl 3-chloro-2,2-dimethyl-3-oxopropanoate (CAS 64507-20-6)
- Ethyl-3-chloro-2-oxo butanoate (CAS 50774-86-2)
- Methyl 3-chloro-2-oxopentanoate (CAS 28942-53-2)
- Ethyl 4-amino-2,6-dimethylbenzoate (CAS 83795-46-4)
- 2-(((1H-Benzo[d]imidazol-2-yl)methyl)thio)-3-ethyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 618879-68-8)
- tert-Butyl (E)-(2-methylbenzylidene)carbamate (CAS 743430-47-9)
- 2-((4,8-Dimethylquinolin-2-yl)oxy)ethanamine (CAS 801167-09-9)
- 8-Bromo-4-hydroxy-2-methylquinoline (CAS 1201-08-7)
- N-(2-Hydroxyethyl)sulfamide (CAS 888700-98-9)
- 2-(Benzyloxy)-4-(trifluoromethyl)benzonitrile (CAS 81465-87-4)
- 2-(Benzylthio)-4-(p-tolylthio)thieno[3,2-d]pyrimidine (CAS 478067-45-7)
- 2,3-Dioxoindoline-6-carbaldehyde (CAS 115542-14-8)
- Fibrinogen-Binding Peptide (CAS 137235-80-4)
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