| Bioactivity | Flubi-2 is a fluorescein-biotin based pH-ratio dye (Ex=480 nm, Em= 520-560 nm) with a pK value of 6.7. Flubi-2 is a hydrolysis product of Flubida-2 (non-fluorescent, membrane permeable). Flubi-2 can be used for pH determination of organelles of the secretory pathway (such as golgi apparatus and endoplasmic reticulum) in living cells[1][2]. |
| Name | Flubi-2 |
| Formula | C78H88N8O16S2 |
| Molar Mass | 728.85 |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | Please store the product under the recommended conditions in the Certificate of Analysis. |
| Reference | [1]. Wu MM, et al. Studying organelle physiology with fusion protein-targeted avidin and fluorescent biotin conjugates. Methods Enzymol. 2000;327:546-64. [2]. Wu MM, et al. Organelle pH studies using targeted avidin and fluorescein-biotin. Chem Biol. 2000 Mar;7(3):197-209. |