4-(4-Chlorophenyl)-2,4-dioxobutanoic acid CAS 38053-20-2
| CAS No. | 38053-20-2 |
| Molecular Formula | C10H7ClO4 |
| Molecular Weight | 226.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
4-(4-Chlorophenyl)-2,4-dioxobutanoic acid (CAS 38053-20-2), molecular formula C10H7ClO4 and molecular weight 226.61 g/mol, is a CATO reference standard with documented purity and traceability.
4-(4-Chlorophenyl)-2,4-dioxobutanoic acid (C10H7ClO4) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H7ClO4 |
| Molecular Weight | 226.61 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Halogen Content | Cl-containing |
Related Chlorophenyl Standards
- (Z)-4-(4-Chlorophenyl)-2-hydroxy-4-oxobut-2-enoic acid (CAS 103344-71-4)
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- 3-(4-Chlorophenyl)tetrahydrofuran-3-carboxylic acid (CAS 1035261-04-1)
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Recommended Standards
- 3-Chloro-6-(2,4-difluorophenyl)pyridazine (CAS 99708-44-8)
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- 3-Chloro-5,7-dihydroxy-4-methyl-2h-chromen-2-one (CAS 22649-27-0)
- 4-(Chloromethyl)-5,7-dihydroxy-2H-chromen-2-one (CAS 85029-91-0)
- (2S,6S,8S,11S)-1,10-Diazatricyclo[6.4.01,8.02.6]dodecan-9,12-dione (CAS 129048-16-4)
- 4-(4-Methoxystyryl)pyridine (CAS 722-21-4)
- 1-(1-(4-Chlorophenyl)cyclobutyl)-3-(methoxymethyl)-N,N-dimethylpentan-1-amine 2-hydroxypropane-1,2,3-tricarboxylate (CAS 106081-48-5)
- Sunflower trypsin inhibitor 1 (CAS 245080-24-4)
- 4,7-Dimethyl-2H-chromen-2-one (CAS 14002-90-5)
- 4-((2-Chlorophenyl)thio)benzoicacid (CAS 141358-09-0)
- 3-(4-Fluoro-2-methoxyphenoxy)cyclobutan-1-amine (CAS 1823684-77-0)
- 2-Ethoxy-3-methoxy-2-methylpropan-1-amine (CAS 1498637-06-1)
- 5-Azetidin-3-yl-3-(2-thienylmethyl)-1,2,4-oxadiazole hydrochloride (CAS 1351644-48-8)
- D-Lys20-Tirzepatide (CAS CATO-CPTD788914)
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