(T-4)-[(1E,6E)-1,7-bis[4-(Dimethylamino)phenyl]-1,6-heptadiene-3,5-dionato-O3,O5]difluoroboron Chemical Properties

storage temp. 

2-8°C

solubility 

DMSO: soluble0.2mg/mL, clear (warmed)

form 

powder

color 

dark blue to black

InChI

1S/C23H25BF2N2O2/c1-27(2)20-11-5-18(6-12-20)9-15-22-17-23(30-24(25,26)29-22)16-10-19-7-13-21(14-8-19)28(3)4/h5-17H,1-4H3/b15-9+,16-10+

InChIKey

PVXQJYXODFZTBR-KAVGSWPWSA-N

SMILES

[B-]1([O+]=C(C=C(O1)\C=C\c3ccc(cc3)N(C)C)\C=C\c2ccc(cc2)N(C)C)(F)F

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/38

Safety Statements 

26

WGK Germany 

3

Storage Class

11 - Combustible Solids

Hazard Classifications

Eye Irrit. 2
Skin Irrit. 2

(T-4)-[(1E,6E)-1,7-bis[4-(Dimethylamino)phenyl]-1,6-heptadiene-3,5-dionato-O3,O5]difluoroboron Usage And Synthesis

Uses

CRANAD 2 is a near-infrared probe that binds to Aβ40 aggregates and elicits an emission blue shift. It was shown to bind to plaques in APP-PS1 transgenic mice, in vitro.

Biological Activity

CRANAD 2 is a near-infrared (NIR) Aβ plaque-specific fluorescent probe. CRANAD 2 penetrates the blood brain barrier and has a high affinity for Aβ aggregates with a Kd of 38 nM. Upon interacting with Aβ aggregates, CRANAD 2 exhibits a 70-fold increase in fluorescence intensity accompanied by a 90 nm blue shift from 805 to 715 nm and a large increase in quantum yield. CRANAD 2 has been used to detect Aβ deposits noninvasively in vivo in transgenic Tg2576 mice.

storage

Store at -20°C