3-(6-Amino-5,7-dichloro-3-oxobenzo[b]thiophen-2(3H)-ylidene)-5,7-dichloroindolin-2-one CAS 6424-62-0
| CAS No. | 6424-62-0 |
| Molecular Formula | C16H6Cl4N2O2S |
| Molecular Weight | 432.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-(6-Amino-5,7-dichloro-3-oxobenzo[b]thiophen-2(3H)-ylidene)-5,7-dichloroindolin-2-one (C16H6Cl4N2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 432.11 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3-(6-Amino-5,7-dichloro-3-oxobenzo[b]thiophen-2(3H)-ylidene)-5,7-dichloroindolin-2-one (CAS 6424-62-0), molecular formula C16H6Cl4N2O2S and molecular weight 432.11 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 3-(6-Amino-5,7-dichloro-3-oxobenzo[b]thiophen-2(3H)-ylidene)-5,7-dichloroindolin-2-one 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 | C16H6Cl4N2O2S |
| Molecular Weight | 432.11 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Amino Standards
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Recommended Standards
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- (R)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-(furan-2-yl)butanoic acid (CAS 270596-34-4)
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