2-[4-(pyridin-2-yloxy)phenoxy]acetic acid CAS 949980-40-9
| CAS No. | 949980-40-9 |
| Molecular Formula | C13H11NO4 |
| Molecular Weight | 245.23 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-(pyridin-2-yloxy)phenoxy]acetic acid.
2-[4-(pyridin-2-yloxy)phenoxy]acetic acid (CAS 949980-40-9) is a high-purity analytical reference standard with the molecular formula C13H11NO4 and a molecular weight of 245.23 g/mol.
Structurally, 2-[4-(pyridin-2-yloxy)phenoxy]acetic acid (C13H11NO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 245.23 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C13H11NO4 |
| Molecular Weight | 245.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 2-Amino-5-(furan-2-yl)-5-[(furan-2-yl)methyl]-4,5-dihydro-1H-imidazol-4-one (CAS 512190-84-0)
- 4-(2,4-Dichlorobenzyl)-8-(4-nitrophenyl)-1-oxa-4,8-diazaspiro[4.5]Decane (CAS 400075-71-0)
- Methyl 4,6-dichloropyrimidine-5-carboxylate (CAS 87600-71-3)
- Bis((2-methoxypyrimidin-5-yl)methyl)amine (CAS 2089335-05-5)
- Dithianon (CAS 3347-22-6)
- 2-(6-Amino-5-(difluoromethyl)-4-methoxypyridin-2-yl)acetonitrile (CAS 1803674-21-6)
- Ethyl (5,5-dimethyl-2-oxotetrahydrofuran-3-yl)carbamate (CAS 77694-25-8)
- N-Cyclopropyl-1H-1,2,4-triazole-5-carboxamide (CAS 519018-61-2)
- 6-Oxa-1-azaspiro[3.3]Heptan-2-one (CAS 1936339-66-0)
- 1-Cyclopropyldecahydroquinoxaline (CAS 1781163-27-6)
- Tau Peptide (401-411)-Lys-Lys trifluoroacetate salt (CAS 2022956-59-6)
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