1-(Phenylsulfonyl)-1H-indole-2-carboxylic acid CAS 40899-93-2
| CAS No. | 40899-93-2 |
| Molecular Formula | C15H11NO4S |
| Molecular Weight | 301.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-(Phenylsulfonyl)-1H-indole-2-carboxylic acid (C15H11NO4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 301.32 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 1-(Phenylsulfonyl)-1H-indole-2-carboxylic acid (CAS 40899-93-2), a certified reference material (molecular formula C15H11NO4S, MW 301.32 g/mol) for analytical method development and quality control.
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 | C15H11NO4S |
| Molecular Weight | 301.32 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Phenylsulfonyl Standards
- 1-Phenylsulfonyl-1H-indole-4-carboxylic acid (CAS 1356470-08-0)
- 1-(Phenylsulfonyl)-1H-indole-3-carboxylic acid (CAS 278593-17-2)
- 3-Phenyl-2-(phenylsulfonyl)isoxazol-5(2H)-one (CAS 320423-38-9)
- 5-Phenyl-1-(phenylsulfonyl)pyrrolidin-3-one (CAS 1270026-81-7)
- 1-(1-(Phenylsulfonyl)-1H-indol-2-yl)ethanol (CAS 80360-24-3)
- 5-(Phenylsulfonyl)-2-(trifluoromethyl)aniline (CAS 915763-83-6)
- 1-Benzyl-3-(phenylsulfonyl)pyrrolidine (CAS 101767-83-3)
- (1-(Phenylsulfonyl)-1H-indol-4-yl)boronic acid (CAS 1256358-55-0)
Recommended Standards
- 1-(4-Methoxy-3-nitrobenzenesulfonyl)piperazine (CAS 524711-18-0)
- 1-(4-Fluorophenyl)-4-(4-nitrophenyl)piperazine (CAS 251097-68-4)
- 1-Benzyl-7-(methylthio)-1H-pyrimido-[4,5-d][1,3]oxazine-2,4-dione (CAS 686267-35-6)
- 1-(3-fluorophenyl)-3-methylpyrido[1,2-a]benzimidazole-4-carbonitrile (CAS 730992-50-4)
- tert-Butyl 3-(acetylsulfanyl)piperidine-1-carboxylate (CAS 1017798-33-2)
- 1-(Benzyloxy)-4-(2,2,2-trifluoroethoxy)benzene (CAS 200956-20-3)
- tert-Butyl 6-bromo-1-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate (CAS 2767425-52-3)
- 5-Amino-2'-(pyrrolidine-3-carbonyl)-[1,1'-biphenyl]-3-carboxylic acid (CAS 1261910-19-3)
- (R)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(thiophen-2-ylmethyl)propanoic acid (CAS 1260666-24-7)
- (S)-2-Phenoxypropanal (CAS 149646-90-2)
- 3-isopropylthiomorpholine (CAS 29442-20-4)
- N-Methyl-2-(pyrrolidin-3-yl)acetamide hydrochloride (CAS 1609402-95-0)
- 4-[(4-Chlorobenzenesulfinyl)methyl]-2-phenyl-6-(phenylsulfanyl)pyrimidine (CAS 306980-55-2)
- Crustacean Cardioactive Peptide (CAS 107090-96-0)
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