Invitrogen - Molecular Probes

Data for C1904

376.32

pH >6, DMF

Abs

475

29,000

517

pH 5

Abs

492

78,000

517

pH 9

6.4

<1>	pK_a values may vary considerably depending on the temperature, ionic strength, viscosity, protein binding and other factors. Unless otherwise noted, values listed have been determined from pH-dependent fluorescence measurements at 22°C.
<2>	Spectra are in aqueous buffers adjusted to >1 pH unit above and >1 pH unit below the pK_a.
<3>	This product is specified to equal or exceed 98% analytical purity by HPLC.