SBFI AM

SBFI AM is a membrane-permeant, fluorescent Na+ indicator dye. It is selective for Na+ over K+ with Kd values of 20 and 120 mM for these ions, respectively. Increasing concentration of Na+ increases the ratio of excitation efficiency at 330-345 nm to that at 370-390 nm with emission collected at 450-550 nm. Therefore, ratio fluorometry and imaging can be performed with the same wavelengths. SBF AM is suitable for single intracellular dye injection and is typically used for high-resolution measurements of Na+ concentration in intact tissue through two-photon confocal imaging.Formal Name: 4,4'-[1,4,10-trioxa-7,13-diazacyclopentadecane-7,13-diylbis(5-methoxy-6,2-benzofurandiyl)]bis-1,3-benzenedicarboxylic acid 1,1',3,3'-tetrakis[(acetyloxy)methyl] ester. CAS Number: 129423-53-6. Synonyms: Sodium-binding Benzofuran Isophthalate Acetoxymethyl ester. Molecular Formula: C56H58N2O23. Formula Weight: 1127.1. Purity: >95%. Emission: 450-550 nm. Excitation: 330-345 nm (low Na+), 370-390 nm (high Na+). Formulation: (Request formulation change), A solid. Solubility: Methanol: Soluble. SMILES: O=C(OCOC(C)=O)C(C=C1)=CC(C(OCOC(C)=O)=O)=C1C2=CC(C=C3OC)=C(O2)C=C3N4CCOCCOCCN(C5=C(OC)C=C(C=C(C6=C(C(OCOC(C)=O)=O)C=C(C(OCOC(C)=O)=O)C=C6)O7)C7=C5)CCOCC4. InChi Code: InChI=1S/C56H58N2O23/c1-33(59)72-29-76-53(63)37-7-9-41(43(21-37)55(65)78-31-74-35(3)61)49-23-39-25-51(67-5)45(27-47(39)80-49)57-11-15-69-16-12-58(14-18-71-20-19-70-17-13-57)46-28-48-40(26-52(46)68-6)24-50(81-48)42-10-8-38(54(64)77-30-73-34(2)60)22-44. InChi Key: MWUYLQGOGOLRQS-UHFFFAOYSA-N.