Oregon Green(TM) 488 succinimidyl ester

Oregon GreenTM 488 succinimidyl ester is an amine-reactive fluorescent probe. It has been used in the synthesis of fluorescent DNA probes and to fluorescently label proteins. A related derivative, Oregon GreenTM 488 (Cay-35372), displays absorbance/emission maxima of 490/514 nm, respectively. Formal Name: 2',7'-difluoro-3',6'-dihydroxy-3-oxo-spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-5-carboxylic acid, 2,5-dioxo-1-pyrrolidinyl ester. CAS Number: 198139-51-4. Synonyms: 2',7'-Difluorofluorescein succinimidyl ester OG 488 SE OG 488 succinimidyl ester. Molecular Formula: C25H13F2NO9. Formula Weight: 509.4. Purity: >85%. Formulation (Request formulation change): A solid. Solubility: DMSO: Sparingly soluble: 1-10 mg/ml Ethanol: Sparingly soluble: 1-10 mg/ml. lambdamax: 214, 278, 458 nm. SMILES: FC(C=C1C2(C3=CC=C(C(ON4C(CCC4=O)=O)=O)C=C3C(O2)=O)C5=CC(F)=C(O)C=C5OC1=C6)=C6O. InChi Code: InChI=1S/C25H13F2NO9/c26-15-6-13-19(8-17(15)29)35-20-9-18(30)16(27)7-14(20)25(13)12-2-1-10(5-11(12)24(34)36-25)23(33)37-28-21(31)3-4-22(28)32/h1-2,5-9,29-30H,3-4H2. InChi Key: NIPUTGPBPLFCFM-UHFFFAOYSA-N. Storage: -20°C. Stability: > 4 years.