5-(6)-carboxyfluorescein

5(6)-Carboxyfluorescein diisobutyrate, a protected form of 5(6)-carboxyfluorescein, serves as a fluorescence pH indicator [1].

CFSE (CFDA-SE) is a fluorescent dye with cell membrane permeability. CFSE irreversibly binds to intracellular proteins in living cells and is used for the detection of cell proliferation. The labeled cells fluoresce in green color with excitation wavelength of 488 nm and emission wavelength of 518 nm.

5(6)-Carboxyfluorescein (5-(and-6)-Carboxyfluorescein mixed isomers) contains a carboxylic acid that can be used to react with primary amines via carbodiimide activation of the carboxylic acid.

5(6)-CFDA (5-(6)-Carboxyfluorescein diacetate) is a cell-permeant esterase substrate that can serve as a viability probe that measures both enzymatic activities, which is required to activate its fluorescence, and cell-membrane integrity, which is required for intracellular retention of their fluorescent product.

5(6)-FAM SE (5(6)-Carboxyfluorescein N-hydroxysuccinimide ester) is an amine-reactive green fluorescent dye. 5(6)-FAM SE is widely used for labeling proteins or other molecules that contain a primary or secondary aliphatic amine.

BCECF is a pH-sensitive fluorescent dye and a cytosolic pH indicator. It can be used for detecting intracellular pH levels.

5-FAM-Ahx-LL-37 TFA is a 5-FAM labeled version of LL-37, human. The carboxyfluorescein moiety is attached via 6-Aminohexanoic acid (Ahx). LL-37, human, is a 37-residue amphipathic antimicrobial peptide, derived from an antibiotic, possessing broad-spectrum antimicrobial activity.

5-FAM-LL-37 is a fluorescently labeled antimicrobial peptide conjugated to 5-carboxyfluorescein (5-FAM) through a 6-aminohexanoic acid (Ahx) linker, featuring excitation/emission maxima at 492/518 nm, respectively. This compound integrates the functional attributes of LL-37 with the fluorescent properties of 5-FAM for enhanced visualization.