DAF-FM diacetate (4-amino-5-methylamino-2',7'-difluorofluorescein diacetate)

Cat. # Quantity Price Lead time
SA100 50 ug $22 in stock
1A100 1 mg $325 in stock
Found better price? Let us know and we will propose the way forward!

DAF-FM diacetate (DAF-FM DA) is a cell-permeant, fluorescent probe for detecting and quantifying low concentrations of nitric oxide (NO). DAF-FM DA passively diffuses across cellular membranes and, once inside cells, is deacetylated by intracellular esterases and converted to cell-impermeant form — DAF-FM.

The fluorescence quantum yield of DAF-FM is ~0.005, but it increases about 160-fold to ~0.81 after reacting with NO and forming a fluorescent benzotriazole (excitation/emission maxima at 495/515 nm) .

The NO detection limit of DAF-FM (~3 nM) is more sensitive than that of DAF-2 (~5 nM). The fluorescence of the NO adduct of DAF-FM is independent of pH above pH 5.5. Moreover, the NO adduct of DAF-FM demonstrates a significantly enhanced photostability compared to that of DAF-2, ensuring reliable results and additional time for imaging.

DAF-FM DA should be dissolved in DMSO and then used to prepare a working solution. Buffers containing bovine serum albumin (BSA) or phenol red can affect the fluorescence and should be used cautiously.

Customers also purchased with this product

SynaptoProbe Green

SynaptoProbe Green is an analog of FM®1-43, a widely used green fluorescent dye for staining synaptic vesicles and studying synaptic activity in the synapses or neuromuscular junctions.

HMRhoNox-M, Fe(II)-selective fluorescent probe

Fe(II)-responsive turn-on fluorescent probe for monitoring fluctuations of endogenous labile iron in living cells.

BDP® 493/503 lipid stain

BDP 493/503 is a lipophilic green fluorescent dye for the staining and tracing of cell membranes, lipids, and oils.

General properties

Appearance: beige solid
Molecular weight: 496.42
CAS number: 254109-22-3
Molecular formula: C25H18F2N2O7
Solubility: DMSO
Quality control: NMR 1H and HPLC-MS (95+%)
Storage conditions: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate.
MSDS: Download
Product specifications
Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.