3-Ethyl-1-((4-methoxyphenyl)sulfonyl)-1H-indole-2-carbaldehyde CAS 88939-67-7
| CAS No. | 88939-67-7 |
| Molecular Formula | C18H17NO4S |
| Molecular Weight | 343.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 343.40 g/mol gives 3-Ethyl-1-((4-methoxyphenyl)sulfonyl)-1H-indole-2-carbaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3-Ethyl-1-((4-methoxyphenyl)sulfonyl)-1H-indole-2-carbaldehyde (CAS 88939-67-7), a certified reference material (molecular formula C18H17NO4S, MW 343.40 g/mol) for analytical method development and quality control.
The molecular framework of 3-Ethyl-1-((4-methoxyphenyl)sulfonyl)-1H-indole-2-carbaldehyde (C18H17NO4S) 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. 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.
As a certified reference material (CRM), 3-Ethyl-1-((4-methoxyphenyl)sulfonyl)-1H-indole-2-carbaldehyde meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C18H17NO4S |
| Molecular Weight | 343.40 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.) | 1982 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 1-(1-((4-Methoxyphenyl)sulfonyl)-2-methyl-1H-indol-3-yl)ethan-1-one (CAS 113424-27-4)
- ((4-Methoxyphenyl){2-oxo-2-[(2-pyridin-2-ylethyl)-amino]ethyl}amino)acetic acid 1142215-84-6 9471AC C18H21N3O4 (CAS 1142215-84-6)
- 3-(2-Methoxyphenyl)-N-(1-(3-methyl-1,2,4-oxadiazol-5-yl)cyclohexyl)propanamide (CAS 1396632-45-3)
- 6-((4-Methoxyphenyl)(morpholino)methyl)benzo[d][1,3]dioxol-5-ol (CAS 102616-61-5)
- 2-({5-[3-(4-Methoxyphenyl)-1,2,4-oxadiazol-5-yl]pyridin-2-yl}sulfanyl)acetic acid (CAS 1325306-47-5)
- 2-[(2-Methoxyphenyl)sulfanyl]-3-phenylquinoline (CAS 339013-93-3)
- 2-(4-Methoxyphenyl)-2-(3-(trifluoromethyl)quinoxalin-2-yl)acetonitrile (CAS 477867-64-4)
- 3-(4-Methoxyphenyl)-5-((phenylselanyl)methyl)isoxazole (CAS 833462-42-3)
Recommended Standards
- 3-((3,4-Dimethylphenyl)sulfonyl)-6-methoxyquinolin-4(1H)-one (CAS 902506-41-6)
- 4-(((6-Methoxyquinolin-3-yl)methyl)amino)benzenesulfonamide (CAS 62294-85-3)
- 2-Ethoxy-5-((4-ethylpiperazin-1-yl)sulfonyl)nicotinic acid (CAS 247582-73-6)
- 4-(3,5-Dimethoxyphenyl)-5-(phenoxymethyl)-4H-1,2,4-triazole-3-thiol (CAS 917747-01-4)
- 1-(4-Amino-2-ethylphenyl)pyrrolidin-3-ol (CAS 503457-34-9)
- 4-CHLORO-3-METHYL-5-NITROBENZAMIDE (CAS 1805673-56-6)
- 6-Bromopyrazine-2-carboxamide (CAS 1209459-76-6)
- 4-(n-Methylacetamido)butanoic acid (CAS 117704-99-1)
- 1-(5-Methylisoxazol-3-yl)pentan-1-one (CAS 478044-09-6)
- H-Tyr-Thr-Ile-Trp-Met-Pro-Glu-Asn-Pro-Arg-Pro-Gly-Thr-Pro-Cys-Asp-Ile-Phe-Thr-Asn-Ser-Arg-Gly-Lys-Arg-Ala-Ser-Asn-Gly-OH (CAS CATO-CPTD788727)
- (S)-Benzyl 2-((tert-butoxycarbonyl)amino)-3-(3,4-dihydroxyphenyl)propanoate (CAS 37169-37-2)
- tert-Butyl (3R)-3-(2-oxo-1,2,3,4-tetrahydroquinazolin-3-yl)piperidine-1-carboxylate (CAS 1389309-99-2)
- 2-(2-Formyl-1-pyrrolyl)-3-phenylpropanoic Acid (CAS 1224935-45-8)
- Acetyl Tripeptide-1 (CAS 350595-76-5)
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