Cyanine3.5 free unactivated monofunctional carboxylic acid. Can be used as a reference non-reactive dye or control. Cyanine3.5 is an analog of Cy3.5® fluorophore.
![](\"https://www.ebiomall.com/images/201709/cy35-carboxylic-acid.png\")
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General properties
| Appearance: | dark purple powder |
| Molecular weight: | 593.20 |
| CAS number: | 1144107-79-8 |
| Molecular formula: | C38H41ClN2O2 |
| Solubility: | soluble in organic solvents (DMF, DMSO, dichloromethane), insoluble in water |
| Quality control: | NMR 1H, HPLC-MS (95%) |
| Storage conditions: | Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. |
Spectral properties
| Excitation maximum, nm: | 591 |
| ε, L⋅mol−1⋅cm−1: | 116000 |
| Emission maximum, nm: | 604 |
| Fluorescence quantum yield: | 0.35 |
| CF260: | 0.29 |
| CF280: | 0.22 |
