205744-92-9 2-(2-{2-Chloro-3-[2-(1,3,3-trimethyl-1,3-dihydro-2H-indol-2-ylidene)ethylidene]cyclohex-1-en-1-yl}ethenyl)-1,3,3-trimethyl-3H-indol-1-ium 4-methylbenzene-1-sulfonate DTXSID30723816 CAS 205744-92-9
| CAS No. | 205744-92-9 |
| Molecular Formula | C32H36ClN2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
205744-92-9 2-(2-{2-Chloro-3-[2-(1,3,3-trimethyl-1,3-dihydro-2H-indol-2-ylidene)ethylidene]cyclohex-1-en-1-yl}ethenyl)-1,3,3-trimethyl-3H-indol-1-ium 4-methylbenzene-1-sulfonate DTXSID30723816 (CAS 205744-92-9), molecular formula C32H36ClN2C7H7O3S and molecular weight 655.29 g/mol, is a CATO reference standard with documented purity and traceability.
205744-92-9 2-(2-{2-Chloro-3-[2-(1,3,3-trimethyl-1,3-dihydro-2H-indol-2-ylidene)ethylidene]cyclohex-1-en-1-yl}ethenyl)-1,3,3-trimethyl-3H-indol-1-ium 4-methylbenzene-1-sulfonate DTXSID30723816 (C32H36ClN2C7H7O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, 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.
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 | C32H36ClN2 C7H7O3S |
| Molecular Weight | 655.29 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2015 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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- Tau Peptide (245-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 1428134-39-7)
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