Cyanine5 Boc-hydrazide|Cy5 Boc-hydrazide   Boc-protected Cyanine5 hydrazide reactive dye for the labeling of aldehydes and ketones. Boc- (tert-butoxycarbonyl) protective group can be removed with trifluoroacetic acid, or other strong acid. Reactive hydrazide is formed, which can then couple with various carbonyl groups yielding Cyanine5-labeled molecules.                Cyanine5 Boc-hydrazide|Cy5 Boc-hydrazide   General properties： Appearance: dark blue powder Molecular weight: 633.26 Molecular formula: C37H49ClN4O3 Solubility: good in dichloromethane, polar organic solvents (DMF, DMSO), alcohols, low in water 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: 646 ε, L⋅mol−1⋅cm−1: 250000 Emission maximum, nm: 662 Fluorescence quantum yield: 0.2 CF260: 0.03 CF280: 0.04   酰肼染料 DYE HYDRAZIDES Cy3酰肼Cyanine3 hydrazide   Cy5酰肼 Cyanine5 hydrazide   Cy5 Boc-酰肼 Cyanine5 Boc-hydrazide   Cy5.5酰肼 Cyanine5.5 hydrazide   其它酰肼类荧光染料： 酰肼 Dye hydrazides Pyrene hydrazide BDP FL hydrazide Cyanine3 hydrazide Cyanine5 Boc-hydrazide Cyanine5 hydrazide Cyanine5.5 hydrazide Cyanine7 hydrazide Cyanine7.5 hydrazide