70363-83-6

70363-83-6 structure

Name	Bis(1,3-dibutylbarbituric acid) trimethine oxonol
Synonyms	dibac4(3) MFCD00467633

Description	DiBAC4(3) is a voltage-sensitive fluorescent dye (λex=490 nm, λem=505 nm).
Related Catalog	Signaling Pathways >> Others >> Others Dye Reagents Research Areas >> Others
In Vitro	The membrane hyperpolarization induced by 10 μM Evans blue (EB) in HEKBKα is clearly observed with DiBAC4(3), while the change in membrane potential (MP) by addition of 3 mM tetraethylammonium chloride (TEA) appears more slowly than that measured with microelectrode. The time to peak of hyperpolarization is 2.3±0.9 s (n=4) and 35.0±2.6 s (n=12, P<0.01) by the measurements with microelectrodes and DiBAC4(3), respectively[1].
Cell Assay	Prior to the fluorescence measurements, cells are incubated in KRH (Krebs-Ringer-HEPES) buffer containing with 100 nM DiBAC4(3) for 20 min at room temperature. The stained cells are used for experiments without washing. The fluorescence emission is collected using a 505 nm dicroic mirror and a BA filter (>520 nm)[1].
References	[1]. Yamada A, et al. Usefulness and limitation of DiBAC4(3), a voltage-sensitive fluorescent dye, for the measurement of membrane potentials regulated by recombinant large conductance Ca2+-activated K+ channels in HEK293 cells. Jpn J Pharmacol. 2001 Jul;86(3):342-50.

Personal Protective Equipment	Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes	Xn
RIDADR	NONH for all modes of transport