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CytoCalcein™ Violet 660, sodium salt *Excited at 405 nm*

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Physical properties
Molecular weight662.63
Storage, safety and handling
H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
StorageFreeze (< -15 °C); Minimize light exposure


Molecular weight
CytoCalcein™ Violet 660 is the esterase-cleaved product of CytoCalcein™ Violet 660 AM in live cells. CytoCalcein™ Violet 660 is not cell-permemable. It is the reference product for the CytoCalcein™ Violet 660 AM that is designed for labeling live cells in the same way as Calcein, AM does. CytoCalcein™ Violet 660 is well excited with the Violet laser at 405 nm, which is now equipped in most flow cytometers. It is also well-excited by the excitation sources of fluorescence microscopes. This exceptional spectral separation from the typical existing FACS fluorophores provides additional options for multiplexing experiments with a flow cytometer or a fluorescence microscope. CytoCalcein™ Violet 660 has been developed for multiplexing flow cytometric and fluorescence imaging applications. It provides a new unique color for flow cytometric analysis of live cells.


Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of CytoCalcein™ Violet 660, sodium salt *Excited at 405 nm* to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

0.1 mg0.5 mg1 mg5 mg10 mg
1 mM150.914 µL754.569 µL1.509 mL7.546 mL15.091 mL
5 mM30.183 µL150.914 µL301.828 µL1.509 mL3.018 mL
10 mM15.091 µL75.457 µL150.914 µL754.569 µL1.509 mL

Molarity calculator

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