4-Hydroxy-3-(1-hydroxypentyl)benzoic acid CAS 17243-33-3
| CAS No. | 17243-33-3 |
| Molecular Formula | C12H16O4 |
| Molecular Weight | 224.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Hydroxy-3-(1-hydroxypentyl)benzoic acid.
CATO supplies 4-Hydroxy-3-(1-hydroxypentyl)benzoic acid (CAS 17243-33-3), a certified reference material (molecular formula C12H16O4, MW 224.25 g/mol) for analytical method development and quality control.
Based on its molecular formula C12H16O4, 4-Hydroxy-3-(1-hydroxypentyl)benzoic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 224.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C12H16O4 |
| Molecular Weight | 224.25 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1961 |
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- (4-Chloro-3-methylphenoxy)acetyl chloride (CAS 39784-11-7)
- Tolvaptan Impurity 65 (CAS CATO-C4X-195565)
- 3-(1H-Indol-3-yl)propanal (CAS 360788-02-9)
- (3-(Tert-butyl)bicyclo[1.1.1]Pentan-1-yl)methanol (CAS 162374-89-2)
- 3,4,5-Tribromobenzene-1-thiol (CAS 443683-20-3)
- 8-Chloro-7-methoxyquinoline-2,4-diol (CAS 1415562-72-9)
- Insulin Degludec Impurity 9 (CAS CATO-C4X-21579)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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