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Small Package (20 X 50 μg ), ≥95.0% (HPLC)

Calcein O,O′-diacetate tetrakis(acetoxymethyl) ester
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
MDL number:
PubChem Substance ID:

Quality Level


≥95.0% (HPLC)


λex 496 nm; λem 516 nm±5 nm in 0.1 M Tris pH 8.0, esterase; Ca2+

storage temp.


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InChI key


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Calcein-AM is a non-fluorescent cell permeable derivative of calcein that becomes fluorescent upon hydrolysis within the cytosol. Calcein-AM is used as a cell viability stain and as a neutral substrate for multidrug (MDR) efflux transporters.
Non-fluorescent cell permeable derivative of calcein, becomes fluorescent on hydrolysis. Used as a neutral substrate for multidrug resistance protein, MRP; employed in tumor research.

Storage Class Code

11 - Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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