Methyl 3-chloro-5-methyl-2-oxohexanoate CAS 145475-50-9
| CAS No. | 145475-50-9 |
| Molecular Formula | C8H13ClO3 |
| Molecular Weight | 192.64 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 3-chloro-5-methyl-2-oxohexanoate (CAS 145475-50-9) is a high-purity analytical reference standard with the molecular formula C8H13ClO3 and a molecular weight of 192.64 g/mol.
Structurally, Methyl 3-chloro-5-methyl-2-oxohexanoate (C8H13ClO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 192.64 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Methyl 3-chloro-5-methyl-2-oxohexanoate 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 | C8H13ClO3 |
| Molecular Weight | 192.64 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 |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | Cl-containing |
Related Methyl Standards
- 4-chloro-2-cyclopropyl-1H-Pyrrolo[2,3-b]pyridine (CAS 1014613-52-5)
- 7-Chloro-2-methylquinolin-8-amine (CAS 102876-99-3)
- 5-Chloro-2-methylquinolin-8-amine (CAS 102879-01-6)
- 1-Chloro-4-methoxynaphthalene (CAS 10443-43-3)
- 3-Chloro-4-(1H-pyrrol-1-yl)aniline (CAS 106981-50-4)
- 6-Chloro-3-(prop-1-en-2-yl)imidazo[1,2-a]pyridine (CAS 1080429-96-4)
- 2-chloro-5,7-dimethyl-1,6-naphthyridine (CAS 1085267-44-2)
- 1-Chloro-6-methylisoquinolin-5-amine (CAS 1093101-44-0)
Recommended Standards
- 5-Chloronaphthalene-1,4-diamine (CAS 144754-08-5)
- 4-Chloro-2,5-dimethylquinazoline (CAS 147006-57-3)
- 4-Chloro-2,7-dimethylquinazoline (CAS 1444351-21-6)
- 2-Chloro-7-methyl-6,7-dihydro-5H-cyclopenta[b]pyridine-3-carbonitrile (CAS 1491499-01-4)
- 3-Aminopyrazolo[1,5-a]pyridin-4-ol (CAS 340961-96-8)
- 29107-30-0 3,3-Bis(hydroxymethyl)-2,3-dihydro-4H-1-benzothiopyran-4-one DTXSID70377256 (CAS 29107-30-0)
- 2,2-Difluoro-3-hydroxy-3-(thiophen-3-yl)propanoic acid (CAS 681240-19-7)
- 7-Ethyl-1-naphthoic acid (CAS 824430-41-3)
- 2,2,2-Trifluoro-1-(1-methyl-1H-pyrazol-4-yl)ethan-1-one (CAS 1174886-69-1)
- Arotinolol Impurity 37 (CAS CATO-C4X-185437)
- Tert-butyl 3-hydrazinylpiperidine-1-carboxylate oxalate (CAS 1226815-22-0)
- (2S,2'S,3S,3'S)-MeO-BIBOP (CAS 1202033-19-9)
- 2-(Difluoromethyl)-6-iodo-3-nitro-4-(trifluoromethoxy)pyridine (CAS 1804351-01-6)
- Tetrapeptide-3 (CAS 827306-97-8)
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