4-Acetoxyphenoxyacetic acid CAS 20872-29-1
| CAS No. | 20872-29-1 |
| Molecular Formula | C10H10O5 |
| Molecular Weight | 210.18 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-Acetoxyphenoxyacetic acid.
CATO supplies 4-Acetoxyphenoxyacetic acid (CAS 20872-29-1), a certified reference material (molecular formula C10H10O5, MW 210.18 g/mol) for analytical method development and quality control.
4-Acetoxyphenoxyacetic acid (C10H10O5) 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 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.
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 | C10H10O5 |
| Molecular Weight | 210.18 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.) | 1962 |
Recommended Standards
- 4,4-Difluoro-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one (CAS 56875-01-5)
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- 4-(2-Methoxy-2-oxoethoxy)benzoic acid (CAS 63787-32-6)
- 4-Formyl-3-methoxy-phenoxyacetic acid (CAS 84969-24-4)
- 9-(4-(tert-Butyl)pyridin-2-yl)-9H-carbazol-2-ol (CAS 1636130-34-1)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com