Potassium;2,3,3-Trimethylindole-5-sulfonate CAS 184351-56-2
| CAS No. | 184351-56-2 |
| Molecular Formula | C11H12NO3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Potassium;2,3,3-Trimethylindole-5-sulfonate (C11H12NO3SK) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
Potassium;2,3,3-Trimethylindole-5-sulfonate (CAS 184351-56-2), molecular formula C11H12NO3SK and molecular weight 277.38 g/mol, is a CATO reference standard with documented purity and traceability.
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), Potassium;2,3,3-Trimethylindole-5-sulfonate 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 | C11H12NO3S K |
| Molecular Weight | 277.38 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2009 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Potassium Standards
Recommended Standards
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- 2-(2-Iodobenzyl)propane-1,3-diol (CAS 1493853-64-7)
- n-(3-Bromophenyl)piperidin-3-amine (CAS 1248977-43-6)
- 4-Bromo-5-methyl-1-phenyl-1H-pyrazole (CAS 50877-44-6)
- trans-5-aminooxepan-4-ol (CAS 1904088-86-3)
- 5,7-Dichloro-4-nitro-2,1,3-benzoxadiazole (CAS 15944-78-2)
- 2-[2-(2-Isopropyl-5-methylphenoxy)ethyl]-piperidine hydrochloride (CAS 1219949-42-4)
- 2-Methyl-4-[(methylsulfanyl)methyl]-6-{[3-(trifluoromethyl)phenyl]sulfanyl}pyrimidine (CAS 478031-26-4)
- Piperacillin Impurity 31 (CAS CATO-C4X-173231)
- Insulin Degludec Impurity 28 (CAS CATO-C4X-215728)
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