2-(4-Acetylphenoxy)propanoic acid CAS 91143-71-4
| CAS No. | 91143-71-4 |
| Molecular Formula | C11H12O4 |
| Molecular Weight | 208.21 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 2-(4-Acetylphenoxy)propanoic acid.
2-(4-Acetylphenoxy)propanoic acid (CAS 91143-71-4) is a high-purity analytical reference standard with the molecular formula C11H12O4 and a molecular weight of 208.21 g/mol.
Based on its molecular formula C11H12O4, 2-(4-Acetylphenoxy)propanoic 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 208.21 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 | C11H12O4 |
| Molecular Weight | 208.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
Related Acetylphenoxy Standards
- 2-(3-acetylphenoxy)propanoic acid (CAS 152855-66-8)
- 3-(4-acetylphenoxy)propanoic acid (CAS 91143-72-5)
- Methyl 2-(2-Acetylphenoxy)acetate (CAS 77956-92-4)
- Methyl 2-(4-acetylphenoxy)acetate (CAS 6296-28-2)
- 2-(4-Acetylphenoxy)-N-methylacetamide (CAS 182686-81-3)
- 2-(4-Acetylphenoxy)acetyl chloride (CAS 30893-60-8)
- 2-(3-acetylphenoxy)-N,N-dimethylacetamide (CAS 1016886-24-0)
- 2-(4-Acetylphenoxy)-N,N-dimethylacetamide (CAS 731821-83-3)
Recommended Standards
- 2-(4-Acetamidophenyl)-N-hydroxyacetamide (CAS 2158718-92-2)
- 2-(4-Formylphenoxy)butanoic acid (CAS 480994-55-6)
- 2-(4-Acetamidophenoxy)acetamide (CAS 6033-85-8)
- 2-(4-Methoxyphenyl)-2-oxoethyl acetate (CAS 58518-78-8)
- (4-Bromo-2,5-dichlorophenyl)methanol (CAS 1805023-62-4)
- 1-(2-(((2-Aminoethyl)(methyl)amino)methyl)pyrrolidin-1-yl)ethanone (CAS 1353964-13-2)
- 3-cyano-N-methylbenzenesulfonamide (CAS 56542-62-2)
- Tert-butyl 3-iodo-2-methyl-6,7-dihydropyrazolo[1,5-a]pyrazine-5(4H)-carboxylate (CAS 2138122-16-2)
- 1-Hydroxy-3-methylacridin-9(10H)-one (CAS 91998-86-6)
- 2-[1-(3-Chlorophenyl)-5-(trifluoromethyl)-1H-pyrazol-4-yl]acetic acid (CAS 1280538-12-6)
- Cholic Acid Impurity 13 (CAS 2304-92-9)
- 3,3'-Diiodo-2,2'-dimethoxy-5,5',6,6',7,7',8,8'-octahydro-1,1'-binaphthalene (CAS 400027-47-6)
- Ethyl 6-amino-2-cyclobutyl[1,2,4]triazolo[1,5-a]pyrimidine-5-carboxylate (CAS 1428139-32-5)
- Semaglutide impurity 104(Fmoc-D-His-Aib) (CAS 2171211-18-8)
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