5-Methoxy-1-tosyl-1H-indole CAS 139717-71-8
| CAS No. | 139717-71-8 |
| Molecular Formula | C15H14N2O3S |
| Molecular Weight | 302.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Methoxy-1-tosyl-1H-indole (CAS 139717-71-8), molecular formula C15H14N2O3S and molecular weight 302.35 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Methoxy-1-tosyl-1H-indole (C15H14N2O3S) is characterized by a nitrogen-containing heterocyclic scaffold, 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), 5-Methoxy-1-tosyl-1H-indole 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 | C15H14N2O3S |
| Molecular Weight | 302.35 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methoxy Standards
- N-(4-Methoxy-7-methylbenzo[d]thiazol-2-yl)-1-methyl-1H-pyrazole-3-carboxamide (CAS 1170163-14-0)
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Recommended Standards
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- 1394306-56-9 2-[(1,1-Dioxido-1,2-benzisothiazol-3-yl)(phenyl)amino]ethanol MFCD22422011 (CAS 1394306-56-9)
- 2-(2,6-dimethoxyphenoxy)-1,3-benzothiazol-6-amine (CAS 1411154-91-0)
- 1,4-Bis(4-pyridylmethyl)benzene (CAS 52469-20-2)
- 7-Amino-2-methylisoquinoline-1,3(2h,4h)-dione (CAS 1344117-38-9)
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- 1-{[2-(2H-1,3-Benzodioxol-5-yl)imidazo[1,2-a]pyridin-3-yl]methyl}piperidine-3-carboxylic acid (CAS 904816-43-9)
- 1-(2-Fluoroethyl)pyrrolidin-3-amine (CAS 1440536-95-7)
- 5-(4-Fluorophenyl)-4-hydroxy-2-(phenylethynyl)-6H-1,3-oxazin-6-one (CAS 1923190-14-0)
- 2-(4-Bromo-1h-pyrazol-1-yl)ethan-1-amine hydrochloride (CAS 663941-75-1)
- Insulin Degludec Impurity 24 (CAS CATO-C4X-215724)
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