5-(and-6)-carboxy-2′,7′-dichlorofluorescein is similar to carboxyfluorescein (51013), but has lower pKa. It is useful for detecting pH in more acidic environment. Also see the membrane-permeant compound dichlorofluorescein diacetate (51016).
- pKa = 4.8
- λEx/λEm = 504/529 nm
- λµ= 90,000
- Orange solid soluble in DMSO and pH>6 buffers
- Store at 4°C and protect from light, especially in solution
- MW: 445
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Please note that products will be shipped at ambient temperature. This will not affect performance if the products are kept at the indicated temperature for long term storage. Please refer to the package insert for correct storage conditions.
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