5-Formyl-2-methoxyphenyl benzenesulfonate CAS 496768-53-7
| CAS No. | 496768-53-7 |
| Molecular Formula | C14H12O5S |
| Molecular Weight | 292.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
5-Formyl-2-methoxyphenyl benzenesulfonate (CAS 496768-53-7), molecular formula C14H12O5S and molecular weight 292.31 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Formyl-2-methoxyphenyl benzenesulfonate (C14H12O5S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. 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).
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 | C14H12O5S |
| Molecular Weight | 292.31 g/mol |
| 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.) | 2025 |
| Sulfur Atoms | 1 |
Related Formyl Standards
- 4-Formyl-2-methoxyphenyl benzenesulfonate (CAS 384861-82-9)
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- 2-(3-Formyl-1H-indol-1-yl)-N-(m-tolyl)acetamide (CAS 333745-01-0)
- 2-(3-Formyl-1H-indol-1-yl)-N-(o-tolyl)acetamide (CAS 592546-19-5)
- 2-(3-Formyl-1H-indol-1-yl)-N-(p-tolyl)acetamide (CAS 333745-03-2)
- 3-Formyl-4-hydroxy-5-iodobenzoic acid (CAS 33257-38-4)
- Ethyl 4-formyl-2,5-dimethyl-1-(thiophen-2-ylmethyl)-1H-pyrrole-3-carboxylate (CAS 175276-54-7)
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Recommended Standards
- 5-[(3,4-Dimethoxyphenyl)methylene]dihydro-2-thioxo-4,6(1H,5H)-pyrimidinedione (CAS 60045-60-5)
- 5-Methyl-2-[(2-nitrophenyl)amino]-3-thiophenecarboxylic Acid Methyl Ester (CAS 72242-31-0)
- 4-Methyl-N-(4-nitrophenyl)benzenesulfonamide (CAS 734-25-8)
- Benzo[1,3]dioxole-5-carboxylic acid (5-mercapto-4-methyl-4H-[1,2,4]triazol-3-ylmethyl)-amide (CAS 737779-74-7)
- 7,8-Dichloroisoquinoline (CAS 61563-36-8)
- Sulfisoxazole-13C6 (CAS 1334378-46-9)
- 1,2-Diaminobutane (CAS 4426-48-6)
- 5-Aminopyridazine-4-thiol (CAS 55271-41-5)
- Posaconazole impurity 221 (CAS CATO-C4X-1208221)
- GS-441524 Triphosphate (CAS 1355149-45-9)
- Potassium trifluoro(5-methyl-1,3,4-thiadiazol-2-yl)borate (CAS 1245906-72-2)
- (S)-Azetidin-1-yl(pyrrolidin-2-yl)methanone (CAS 175155-21-2)
- N'-(2,3-Dichlorophenyl)ethane-1,2-Diamine (CAS 40779-32-6)
- semaglutide (CAS 782487-28-9)
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