2-(6-(4-Hydroxyphenoxy)-3-oxo-3H-xanthen-9-yl)benzoic acid CAS 686773-84-2
| CAS No. | 686773-84-2 |
| Molecular Formula | C26H16O6 |
| Molecular Weight | 424.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(6-(4-Hydroxyphenoxy)-3-oxo-3H-xanthen-9-yl)benzoic acid (CAS 686773-84-2), molecular formula C26H16O6 and molecular weight 424.40 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-(6-(4-Hydroxyphenoxy)-3-oxo-3H-xanthen-9-yl)benzoic acid (C26H16O6) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C26H16O6 |
| Molecular Weight | 424.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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 |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
Related Hydroxyphenoxy Standards
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- 4-(4-Hydroxyphenoxy)-3-(pyrrolidin-1-yl)-5-sulfamoylbenzoic acid (CAS 90683-83-3)
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- 1-[2-(4-hydroxyphenoxy)ethyl]-4-[(4-methylphenyl)methyl]piperidin-4-ol (CAS 193359-26-1)
- 2-(2’-Hydroxyphenoxy)-4-nitro-benzophenone-13C6 (CAS 1330180-90-9)
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Recommended Standards
- 1,3-bis(carboxyethoxy)-2,2-bis(carboxyethoxy)propane (CAS 35638-19-8)
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- 1,2,3-Tri-O-acetyl-4,6-O-(4-methoxybenzylidene)-b-D-glucopyranose (CAS 316790-34-8)
- 2-Acetamido-2-deoxy-6-O-(β-D-2-acetamido-2-deoxyglucopyranosyl)-α-D-galactopyranose (CAS 452316-31-3)
- 6-Chloro-3-iodo-5-(trifluoromethyl)pyridin-4(3H)-one (CAS 1379297-78-5)
- 7-(sec-Butylthio)-4-methyl-1-phenyl-1H-pyrazolo[3,4-d]pyridazine (CAS 1105235-13-9)
- 2-(3-Bromophenyl)-1-(4-(trifluoromethyl)phenyl)ethan-1-one (CAS 898784-21-9)
- 3-(Indolin-5-ylsulfonyl)propan-1-ol (CAS 2169117-50-2)
- 5-[(4-chloro-2-fluorophenyl)methyl]-4-methyl-1,3-thiazol-2-amine hydrobromide (CAS 1795494-04-0)
- 3-(Ethyl(propyl)amino)-4,4,4-trifluorobutanoic acid (CAS 1341652-63-8)
- (2-(2-(Benzyloxy)-5-(trifluoromethyl)phenyl)cyclopent-1-en-1-yl)boronic acid (CAS 612833-75-7)
- Phenobarbital EP Impurity C (CAS 76-94-8)
- Abiraterone Impurity 5 (CAS 2484719-11-9)
- Mast Cell Degranulating (MCD) Peptide HR-2 (CAS 80388-04-1)
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