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Squarines
ELA5004 
ELA5004

ELA5004
ELA5004  
Name: 1-(2-Hydroxy-julolidin-4-yl)-3-(1,4-dihydro
-2- hydroxy-julolidin- 4-ylidene-onium)
-2-oxo-cyclobuten-4-olate
CAS# 93470-31-6
Use: purified pigment with very low content of
soluble impurities
Sumformula: C28H28N2O4
Melting Point: 256°C (DSC)
Spectrum: Absorption
668 nm (368000) in CHCl3
REDOX: E 1/2 (OX), [V] Pt/Pt/SCE refered on TCNQ:
0,50; 1,13 E 1/2 (RED), [V] Pt/Pt/SCE refered
on TCNQ:- 1,02 in CH2C12/0.1 M TBAPF6

 

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