EX-A12157
CAS: 2377989-91-6
Category: Organosulfur Compounds
| Purity | 95% |
| Molecular Formula | C₃₆H₅₀N₄O₈S₄ |
| Molecular Weight | 795.07 |
| Appearance | Light yellow powder |
| Packaging | 100 mg, 500 mg, or 1 g in amber glass vials |
| Testing Indicators | Appearance — Visual inspection; Identification — MS and ¹H/¹³C NMR; Purity — HPLC (UV-Vis detection); Water content — Karl Fischer titration; Residual solvents — GC; Counterion content — Ion chromatography. |
| Storage Notes | Store in a dry, sealed container, refrigerated (2-8 °C), and protected from light. Keep away from strong oxidizing agents. |
| Lead Time | 10 days |
A symmetrical bis-indolium cyanine dye with a central disulfide linker. Used as a redox-sensitive fluorescent probe and bioconjugation reagent. The disulfide bond can be cleaved by reducing agents (e.g., glutathione, TCEP, DTT), making it suitable for applications in redox-responsive imaging, as a cleavable linker in ADC/PROTAC development, and for thiol-reactive labeling.