JOE is a fluorescent dye with the emission in yellow region of the spectrum. The fluorophore matches channel of HEX dye, another chlorinated fluorescein.
JOE dye is often used in qPCR; oligo labeling can be achieved using сlick chemistry. This is an azide derivative of JOE for сlick chemistry, pure 5-isomer.
JOE azide, 5-isomer
Appearance: red solid Mass spec M+ increment: 586.1 Molecular weight: 587.37 CAS number: 1422178-11-7 Molecular formula: C26H20N4Cl2O8 Solubility: good in DMF, DMSO Quality control: NMR 1H, HPLC-MS (95%) Storage conditions: Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.