2,3-Dihydro-3-(1H-indol-3-ylmethylene)-2-oxo-1H-indole-5-sulfonamide CAS 181223-16-5
| CAS No. | 181223-16-5 |
| Molecular Formula | C17H13N3O3S |
| Molecular Weight | 339.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,3-Dihydro-3-(1H-indol-3-ylmethylene)-2-oxo-1H-indole-5-sulfonamide (CAS 181223-16-5), molecular formula C17H13N3O3S and molecular weight 339.37 g/mol, is a CATO reference standard with documented purity and traceability.
2,3-Dihydro-3-(1H-indol-3-ylmethylene)-2-oxo-1H-indole-5-sulfonamide (C17H13N3O3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), 2,3-Dihydro-3-(1H-indol-3-ylmethylene)-2-oxo-1H-indole-5-sulfonamide 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 | C17H13N3O3S |
| Molecular Weight | 339.37 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2008 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 1-(Benzo[d][1,3]dioxol-5-yl)-N-(2-fluorobenzyl)methanamine (CAS 355815-61-1)
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- 6-Amino-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile (CAS 465532-05-2)
- SKF 83959 (CAS 67287-95-0)
- 1,1'-(Ethane-1,2-diyl)bis(cyclopropan-1-ol) (CAS 139963-74-9)
- 2,5-Dichloro-N-(4-methoxyphenyl)-N-methylquinazolin-4-amine (CAS 827031-22-1)
- 3-Ethyl-1-(phenylsulfonyl)pentan-3-amine (CAS 2715050-80-7)
- (2S)-2-Phenylpiperazine 137766-74-6 8572AH C10H14N2 (CAS 137766-74-6)
- 1-(2,2-Difluoroethyl)-5-nitro-1H-pyrazole-3-carboxylic acid (CAS 1328640-66-9)
- Liraglutide(5-31)TFA Salt (CAS CATO-C4X-19924)
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