5-(2,4-Dichlorophenyl)-5-oxopentanoic acid CAS 172167-99-6
| CAS No. | 172167-99-6 |
| Molecular Formula | C11H10Cl2O3 |
| Molecular Weight | 261.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(2,4-Dichlorophenyl)-5-oxopentanoic acid (C11H10Cl2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, 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.
5-(2,4-Dichlorophenyl)-5-oxopentanoic acid (CAS 172167-99-6) is a high-purity analytical reference standard with the molecular formula C11H10Cl2O3 and a molecular weight of 261.10 g/mol.
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 5-(2,4-Dichlorophenyl)-5-oxopentanoic acid 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 | C11H10Cl2O3 |
| Molecular Weight | 261.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2006 |
| Halogen Content | Cl-containing |
Related Dichlorophenyl Standards
- Methyl 4-(3,5-dichlorophenyl)-4-oxobutanoate (CAS 1247776-11-9)
- 1-(3,4-Dichlorophenyl)-2-(1,3-dioxolan-2-yl)ethan-1-one (CAS 1263365-49-6)
- 1-(2,5-Dichlorophenyl)-2-(1,3-dioxolan-2-yl)ethan-1-one (CAS 1263365-61-2)
- 1-(2,4-Dichlorophenyl)-2-(1,3-dioxolan-2-yl)ethan-1-one (CAS 1263365-99-6)
- 1-(2,3-Dichlorophenyl)-2-(1,3-dioxolan-2-yl)ethan-1-one (CAS 1263366-04-6)
- N-(3,4-dichlorophenyl)-3-hydroxyazetidine-1-carboxamide (CAS 1341781-04-1)
- 1-(2,6-Dichlorophenyl)-3-hydroxycyclobutane-1-carboxylic acid (CAS 1494015-98-3)
- 1-(2,4-Dichlorophenyl)-3-hydroxycyclobutane-1-carboxylic acid (CAS 1496480-06-8)
Recommended Standards
- 5-(tert-Butyl)-2-iodopyridine (CAS 1701519-35-8)
- 5-(3,5-Dichlorophenyl)-5-oxovaleric acid (CAS 172168-00-2)
- 5-(3,4-Dichlorophenyl)-5-oxopentanoic acid (CAS 168135-66-8)
- Ethyl 3-(3,5-dichlorophenyl)-3-oxopropanoate (CAS 172168-01-3)
- (R)-1-(Benzyloxy)-5-methylhex-5-en-3-ol (CAS 101906-15-4)
- 1,1,3,3-tetradeuteriopropane-1,3-diamine (CAS 347840-13-5)
- H-D-Phe-NH2 (CAS 5241-59-8)
- Benzyl (2-amino-3,3,3-trifluoropropyl)carbamate (CAS 1429913-38-1)
- Hydroxy-PEG5-Boc (CAS 850090-09-4)
- 6-(Benzo[d][1,3]dioxol-5-yl)nicotinic acid (CAS 887976-73-0)
- N-((tetrahydro-2H-pyran-2-yl)methyl)cyclopropanamine (CAS 911115-05-4)
- (R)-Dimethenamid (CAS 163515-13-7)
- 1-[10-[3-(Methylamino)propyl]-10H-phenothiazin-2-yl]ethanone (CAS 89929-14-6)
- Semaglutide impurity 290 (CAS CATO-C4X-2226290)
Why CATO?
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