4-(Pyridin-4-yloxy)phenol CAS 103854-63-3
| CAS No. | 103854-63-3 |
| Molecular Formula | C11H9NO2 |
| Molecular Weight | 187.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 4-(Pyridin-4-yloxy)phenol (C11H9NO2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
4-(Pyridin-4-yloxy)phenol (CAS 103854-63-3), molecular formula C11H9NO2 and molecular weight 187.19 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C11H9NO2 |
| Molecular Weight | 187.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 1 |
Related Pyridin Standards
- 3-(Pyridin-4-yloxy)phenol (CAS 103856-58-2)
- 1-(5-(Pyridin-4-yl)furan-2-yl)ethanone (CAS 55484-35-0)
- 2-(pyridin-2-yloxy)phenol (CAS 35974-37-9)
- 2-(Pyridin-3-yloxy)phenol (CAS 943868-68-6)
- 2-(Pyridin-4-yloxy)phenol (CAS 4979-03-7)
- 3-(Pyridin-3-yloxy)phenol (CAS 57276-34-3)
- 4-(pyridin-2-yloxy)phenol (CAS 68464-71-1)
- 4-(pyridin-3-yloxy)phenol (CAS 85633-52-9)
Recommended Standards
- 8-Methoxyquinoline-4-carbaldehyde (CAS 103854-62-2)
- 2-Amino-1-(2,6-difluorophenyl)propan-1-ol (CAS 1038262-77-9)
- 5-Methylquinoline-2-carboxylic acid (CAS 103856-59-3)
- 2-Amino-1-(3,4-difluorophenyl)propan-1-ol (CAS 1038241-65-4)
- 4-methyl-2,3,4,5-tetrahydro-1,2-benzothiazepine 1,1-dioxide (CAS 1301768-07-9)
- 1H-Naphtho[2,3-d]imidazole-2-carbonitrile (CAS 143157-87-3)
- 3-(tert-Butoxy)-2-(dimethylamino)phenol (CAS 1243389-88-9)
- 2,4-Diethoxy-3-methylbenzaldehyde (CAS 162976-08-1)
- tert-butyl N-(6-bromothiazolo[4,5-b]pyrazin-2-yl)carbamate (CAS 2680840-90-6)
- 4-(Quinoxalin-2-yl)butan-2-ol (CAS 1468896-75-4)
- Dimethyl(quinoxalin-6-yl)phosphine oxide (CAS 2748287-69-4)
- 3-chloranyl-4-fluoranyl-benzoyl chloride 3-chloro-4-fluorobenzoyl chloride 65055-17-6 A834956 (CAS 65055-17-6)
- Folic Acid EP Impurity F HCl (CAS 1391194-56-1(free base))
- Tau Peptide (401-411)-Lys-Lys trifluoroacetate salt (CAS 2022956-59-6)
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