Cyanine5 hydrazide Cat. # Quantity Price 13070 1mg 1760.00 23070 5mg 3360.00 43070 25mg 6560.00 53070 50mg 11120.00 63070 100mg 17600.00 Cyanine5 hydrazide is a reactive dye for the labeling of aldehydes and ketones, an analog of Cy5® hydrazide. This dye reacts smoothly and nearly quantitatively with various carbonyl groups encountered in biomolecules. Examples are proteins subjected to oxidative stress, glycosylated proteins pre-activated by periodate oxidation (including antobodies), and oligonucleotides with aldehyde moieties. Cyanine5 hydrazide replaces carbonyl-reactive Cy5®, Alexa Fluor 647, DyLight 649 dyes. General properties Appearance: dark blue powder Molecular weight: 569.61 Molecular formula: C32H42Cl2N4O Solubility: moderate solubility in water, good in polar organic solvents (DMF, DMSO, alcohols) 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. Desiccate. Spectral properties Excitation maximum, nm: 646 ε, L⋅mol−1⋅cm−1: 250000 Emission maximum, nm: 662 Fluorescence quantum yield: 0.2