DATASHEET
Formulation
Solid
Storage:
Stable for 2 years after receipt when stored at +4°C.
Product Information:
CAS Number: 920269-51-8
Molecular formula: C56H80O7
Molecular weight: 865.23
Purity: >97% (NMR)
Appearance: pale beige to yellow solid.
Solubility: Soluble in chloroform.
InChiKey: HUQRVOIGKCPLLJ-UHFFFAOYSA-N
SMILES: O=C1OC2(C3=CC=C(OC(=O)CCCCCCCCCCCCCCCCC)C=C3OC4=CC(OC(=O)CCCCCCCCCCCCCCCCC)=CC=C42)C=5C=CC=CC15
Description:
Fluorescein dioctadecanoate is a non-fluorescent hydrophobic fluorescein derivative that can pass through the cell membrane whereupon intracellular esterases hydrolyze the dioctadecanoate group producing the highly fluorescent product fluorescein. The fluorescein molecules accumulate in cells. Fluorescein dioctadecanoate is a fluorogenic substrate for C18 esterase that generates green fluorescence upon esterase cleavage. Spectral Data: lambdaEx 497nM, lambdaEm 516nm. Extinction coefficient: 80000 cm-1 M-1.