4-((4-(M-tolyloxy)phenyl)sulfonamido)benzoic acid CAS 727689-53-4
| CAS No. | 727689-53-4 |
| Molecular Formula | C20H17NO5S |
| Molecular Weight | 383.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-((4-(M-tolyloxy)phenyl)sulfonamido)benzoic acid is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-((4-(M-tolyloxy)phenyl)sulfonamido)benzoic acid (CAS 727689-53-4) is a high-purity analytical reference standard with the molecular formula C20H17NO5S and a molecular weight of 383.42 g/mol.
The molecular framework of 4-((4-(M-tolyloxy)phenyl)sulfonamido)benzoic acid (C20H17NO5S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C20H17NO5S |
| Molecular Weight | 383.42 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 |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related M Standards
- 3-((4-(O-tolyloxy)phenyl)sulfonamido)benzoic acid (CAS 612045-19-9)
- 1-((4-(O-tolyloxy)phenyl)sulfonamido)cyclohexane-1-carboxylic acid (CAS 885268-80-4)
- 4-((P-tolyloxy)methyl)-1-tosylpiperidin-4-ol (CAS 866017-86-9)
- 4-(((4-(O-tolyloxy)phenyl)sulfonamido)methyl)benzoic acid (CAS 885268-78-0)
- 3-(5-((M-tolyloxy)methyl)-1,3,4-thiadiazole-2-carboxamido)benzoic acid (CAS 1142202-75-2)
- 1-(1-(4-(p-Tolyloxy)butyl)-1H-benzo[d]imidazol-2-yl)propan-1-ol (CAS 876901-31-4)
- 2-(2-(2-(P-tolyloxy)acetyl)hydrazine-1-carbonyl)cyclohexane-1-carboxylic acid (CAS 446844-44-6)
- 4-((4-(o-Tolyloxy)phenyl)sulfonyl)morpholine (CAS 496026-11-0)
Recommended Standards
- 3-Nitro-4-((2-(2-(p-tolyl)thiazol-4-yl)ethyl)amino)benzoic acid (CAS 861211-10-1)
- 4-((4'-Methoxy-[1,1'-biphenyl])-4-sulfonamido)benzoic acid (CAS 885269-42-1)
- 3-{4-[2-(benzyloxy)acetamido]phenoxy}thiophene-2-carboxylic acid (CAS 882747-60-6)
- 4-(2-((4-Allyl-5-(furan-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamido)benzamide (CAS 577698-90-9)
- 2-Propyl-DL-norvaline Hydrochloride (CAS 87113-22-2)
- N-(9-((2R,4S,5R)-4-Hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-9H-purin-6-yl)picolinamide (CAS 661463-48-5)
- tert-Butyl N-[(4,4-dimethylpyrrolidin-3-yl)methyl]carbamate (CAS 869292-47-7)
- Benzoyl peroxide (CAS 94-36-0)
- 4-Phenyl-7-thia-2,5-diazatricyclo[6.5.0.0^{2,6}]trideca-1(8),3,5-triene (CAS 866009-53-2)
- 5,6-Dibromothieno[2,3-d]pyrimidin-4(3H)-one (CAS 1239460-82-2)
- 5-[(3-chloro-2-fluorophenyl)sulfamoyl]furan-2-carboxylic acid (CAS 1038354-11-8)
- Lofentanil-d3 Oxalate (1.0mg/ml in Acetonitrile) (CAS 1346599-64-1)
- Methyl 4-methoxy-1-methyl-1H-indole-2-carboxylate (CAS 111258-25-4)
- Lixisenatide (CAS 320367-13-3（free base）)
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