Skip to Content
Merck
All Photos(1)

Key Documents

149063

Sigma-Aldrich

1,3-Bis[4-(dimethylamino)phenyl]-2,4-dihydroxycyclobutenediylium dihydroxide, bis(inner salt)

Dye content 90 %

Synonym(s):

Squarylium dye III

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C20H20N2O2
CAS Number:
Molecular Weight:
320.39
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.23

form

solid

composition

Dye content, 90%

mp

>300 °C (lit.)

λmax

625 nm

SMILES string

CN(C)c1ccc(cc1)C2=C([O-])C(=C3/C=CC(\C=C3)=[N+](\C)C)\C2=O

InChI

1S/C20H20N2O2/c1-21(2)15-9-5-13(6-10-15)17-19(23)18(20(17)24)14-7-11-16(12-8-14)22(3)4/h5-12H,1-4H3

InChI key

HERJDZWHZQOZLU-UHFFFAOYSA-N

General description

1,3-Bis[4-(dimethylamino)phenyl]-2,4-dihydroxycyclobutenediylium dihydroxide, bis(inner salt) is an organic dye with an electron withdrawing squaraine as the central group and strong electron donating dimethylaminophenyl groups. It is majorly utilized in the development of organic electronic devices.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Anisotropy in Third-Order Nonlinear Optical Susceptibility of a Squarylium Dye in a Nematic Liquid Crystal
Zhao-Hui, Jin, et al.
Chinese Physics Letters, 23(3), 635-635 (2006)
Shingo Saito et al.
Sensors (Basel, Switzerland), 12(5), 5420-5431 (2012-07-11)
Fluorescence sensing of saccharides and glycoproteins using a boronic acid functionalized squarylium cyanine dye ("SQ-BA") is characterized in terms of synthetic, fluorometric, thermodynamic and kinetic parameters. In our previous work, this newly synthesized dye was successfully applied to the separation
Photophysical properties of commercial red dyes in polymer films
Burgess IB, et al.
Optical Materials, 30(10), 1478-1483 (2008)
A long-wavelength fluorescent squarylium cyanine dye possessing boronic acid for sensing monosaccharides and glycoproteins with high enhancement in aqueous solution
Saito, Shingo, et al.
Sensors, 12(5), 5420-5431 (2012)
Changes in fluorescent emission of cationic fluorophores in the presence of n-alkanes and alcohols in different polarity solvents
Delgado-Camon A, et al.
Chemical Physics Letters, 501(4-6), 547-553 (2011)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service