Ethyl 5-bromo-3,3-dimethyl-4-oxopentanoate CAS 197234-17-6
| CAS No. | 197234-17-6 |
| Molecular Formula | C9H15BrO3 |
| Molecular Weight | 251.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, Ethyl 5-bromo-3,3-dimethyl-4-oxopentanoate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 251.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Ethyl 5-bromo-3,3-dimethyl-4-oxopentanoate (CAS 197234-17-6), molecular formula C9H15BrO3 and molecular weight 251.12 g/mol, is a CATO reference standard with documented purity and traceability.
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 Ethyl 5-bromo-3,3-dimethyl-4-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 | C9H15BrO3 |
| Molecular Weight | 251.12 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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.) | 2013 |
| Halogen Content | Br-containing |
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Recommended Standards
- 1-Benzyl-5-bromo-3-methyl-1H-pyrazole (CAS 1904650-69-6)
- (1R)-2-Bromo-1-(naphthalen-2-yl)ethan-1-ol (CAS 85554-14-9)
- 2-Nitro-5-(trifluoromethoxy)benzoic acid (CAS 189359-65-7)
- (2-Bromo-6-fluoro-3-methoxyphenyl)(methyl)sulfane (CAS 2090548-28-8)
- Methyl methyl-L-isoleucinate (CAS 42807-92-1)
- N-Benzyl-3-bromoaniline (CAS 213814-61-0)
- 4-Methylpent-1-en-3-one (CAS 1606-47-9)
- 2-(Azidomethyl)-6-chloro-1,3-benzoxazole (CAS 1158199-79-1)
- 6-Bromopyrido[3,4-d]pyrimidin-4-amine (CAS 1594729-65-3)
- Almokalant (CAS 123955-10-2)
- 2-((4-((4-(Tert-butyl)phenyl)sulfonamido)-1-hydroxynaphthalen-2-yl)thio)acetic acid (CAS 518303-27-0)
- Isoflurane EP Impurity D (CAS 32778-07-7)
- 2-[6-(ethanesulfonyl)-2-oxo-3,4-dihydro-2h-1,4-benzoxazin-4-yl]acetic acid (CAS 954263-08-2)
- Semaglutide Impurity 133 (CAS CATO-C4X-2226133)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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