3-(2-Hydroxy-4,4-dimethyl-6-oxocyclohex-1-en-1-yl)-4-oxopentanoic acid CAS 93647-07-5
| CAS No. | 93647-07-5 |
| Molecular Formula | C13H18O5 |
| Molecular Weight | 254.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(2-Hydroxy-4,4-dimethyl-6-oxocyclohex-1-en-1-yl)-4-oxopentanoic acid (CAS 93647-07-5) is a high-purity analytical reference standard with the molecular formula C13H18O5 and a molecular weight of 254.28 g/mol.
3-(2-Hydroxy-4,4-dimethyl-6-oxocyclohex-1-en-1-yl)-4-oxopentanoic acid (C13H18O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
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.
Physical & Chemical Properties
| Molecular Formula | C13H18O5 |
| Molecular Weight | 254.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
Related Hydroxy Standards
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Recommended Standards
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- 3-(2-Methylbenzoyl)phenyl acetate (CAS 890099-30-6)
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- 1-(1H-indol-3-yl)-2-nitroethane-1-sulfonate (CAS 32547-30-1)
- 4-Bromo-5-(difluoromethyl)-6-fluoropicolinoyl chloride (CAS 1805243-86-0)
- Pazopanib Impurity 49 (CAS CATO-C4X-172549)
- (E)-3-hydroxy-2-((thiazol-2-ylimino)methyl)-1H-inden-1-one (CAS 1024453-68-6)
- 2-(Pyrazin-2-yl)pyrimidine-5-carboxylic acid (CAS 1340196-88-4)
- Mono-(6-amino-6-deoxy)-β-cyclodextrin (CAS 29390-67-8)
- (S)-2-amino-3-methyl-1-(4-methyl-1,4-diazepan-1-yl)butan-1-one (CAS 1307585-40-5)
- Gastric Inhibitory Polypeptide (6-30) amide (human) (CAS 1139691-72-7)
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