Sulforhodamine 101

Sulforhodamine 101 is a nonfixable red fluorescent dye (excitation max: 586 nm, emission max: 605 nm) that can be used as a specific marker for astrocytes and an activity-dependent probe for monitoring regulated exocytosis. It has been reported to induce long-term potentiation of intrinsic neuronal excitability and a long-lasting increase in evoked excitatory postsynaptic potentials in CA1 pyramidal neurons in hippocampal slices.Formal Name: 9-(2,4-disulfophenyl)-2,3,6,7,12,13,16,17-octahydro-1H,5H,11H,15H-xantheno[2,3,4-ij:5,6,7-i'j']diquinolizin-18-ium, inner salt. CAS Number: 60311-02-6. Synonyms: SR 101, Sulforhodamine 640. Molecular Formula: C31H30N2O7S2. Formula Weight: 606.7. Purity: >95%. Emission: 605 nm. Excitation: 586 nm. Formulation: (Request formulation change), A crystalline solid. Solubility: DMF: 20 mg/ml, DMSO: 25 mg/ml, Ethanol: 1 mg/ml, PBS (pH 7.2): 2 mg/ml. lambdamax: 265, 315, 370, 420, 575 nm. SMILES: OS(C(C=C1S([O-])(=O)=O)=CC=C1C2=C3C(C4=C(N5CCC4)C(CCC5)=C3)=[O+]C6=C(CCC7)C(N7CCC8)=C8C=C62)(=O)=O. InChi Code: InChI=1S/C31H30N2O7S2/c34-41(35,36)20-9-10-21(26(17-20)42(37,38)39)27-24-15-18-5-1-11-32-13-3-7-22(28(18)32)30(24)40-31-23-8-4-14-33-12-2-6-19(29(23)33)16-25(27)31/h9-10,15-17H,1-8,11-14H2,(H-,34,35,36,37,38,39). InChi Key: COIVODZMVVUETJ-UHFFFAOYSA-N.