Calcein AM ≥90%

Supplier: Cayman Chemical

Synonyms: Calcein-AM, Calcein O,O′-diacetate tetrakis(acetoxymethyl) ester, Calcein acetoxymethyl ester, Tetrakis(acetoxymethyl) 2,2',2'',2'''-(((3',6'-diacetoxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-2',7'-diyl)bis(methylene))bis(azanetriyl))tetraacetate

14948-1 14948-500
CAYM14948-1EA 231 GBP
CAYM14948-1 CAYM14948-500
Calcein AM ≥90%
Calcein AM

Calcein AM is a cell-permeable dye that upon entering live cells is cleaved by intracellular esterases, leaving membrane-impermeant calcein.


  • Fluorescent indicator with absorption and emission maxima of 494 and 517 nm respectively
  • Indicator of cell viability, cell-cell communication, cytotoxicity, or changes in intracellular calcium, fluoride, iron, or mercury
  • Calcein is a substrate for multidrug resistance-associated protein 1 (MRP1) and multidrug resistance protein 3 (MDR3, P-glycoprotein 3)


Calcein AM is used to study these proteins and their regulation.

Formula: C₄₆H₄₆N₂O₂₃
MW: 994,86 g/mol
Storage Temperature: Freezer
MDL Number: MFCD05861516
CAS Number: 148504-34-1

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