155172-87-5

Basic information

• Product Name: 3-Cyclobutene-1,2-dione, 3-[4-(dibutylaMino)phenyl]-4-hydroxy-
• Synonyms: 3-Cyclobutene-1,2-dione, 3-[4-(dibutylaMino)phenyl]-4-hydroxy-;3-[4-(dibutylamino)phenyl]-4-hydroxycyclobut-3-ene-1,2-dione
• CAS NO: 155172-87-5
• Molecular Formula: C₁₈H₂₃NO₃
• Molecular Weight: 301.38012
• EINECS: -0
• Mol File: 155172-87-5.mol
• Article Data: 14

Chemical Properties

• Melting Point: 244-245 °C (decomp)(Solv: ethyl ether (60-29-7); hexane (110-54-3))
• Boiling Point: 460.4±55.0 °C(Predicted)
• Appearance: /
• Density: 1.198±0.06 g/cm3(Predicted)
• PKA: -0.74±0.25(Predicted)
• CAS DataBase Reference: 3-Cyclobutene-1,2-dione, 3-[4-(dibutylaMino)phenyl]-4-hydroxy-(CAS DataBase Reference)
• NIST Chemistry Reference: 3-Cyclobutene-1,2-dione, 3-[4-(dibutylaMino)phenyl]-4-hydroxy-(155172-87-5)
• EPA Substance Registry System: 3-Cyclobutene-1,2-dione, 3-[4-(dibutylaMino)phenyl]-4-hydroxy-(155172-87-5)

Safety Data

• Hazardous Substances Data: 155172-87-5(Hazardous Substances Data)

Upstream product

• 62-53-3 aniline 
• 2892-63-9 3,4-Dichlorocyclobut-3-ene-1,2-dione 
• 613-29-6 N-Dibutylaniline 
• 155172-86-4 4-(N,N-Dibutylaminophenyl)-3-chlorocyclobut-3-ene-1,2-dione 

Relevant articles and documents

Near infrared fluorophore-tagged chloroquine in plasmodium falciparum diagnostic imaging

Chloroquine was among the first of several effective drug treatments against malaria until the onset of chloroquine resistance. In light of diminished clinical efficacy of chloroquine as an antimalarial therapeutic, there is potential in efforts to adapt

Photovoltaic Devices Prepared through a Trihydroxy Substitution Strategy on an Unsymmetrical Squaraine Dye

A series of unsymmetrical arene-1,3-squaraine (USQ) derivatives with two, three, or four hydroxy (?OH) substituents, namely, USQ-2-OH, USQ-3-OH, or USQ-4-OH, respectively, were designed and synthesized, and the effect of the number of hydroxy groups on the optoelectronic properties of USQs were investigated. Despite the three compounds having similar UV/Vis absorption and HOMO energy levels, solution-processed bulk-heterojunction (BHJ) small-molecule organic solar cells with USQ-3-OH as electron-donor materials exhibit the highest power conversion efficiency of 6.07 %, which could be mainly attributed to the higher hole mobility and smaller phase separation. It is also noteworthy that the short-circuit current (Jsc) of the USQ-3-OH-based device is as high as 14.95 mA cm?2, which is the highest Jsc values reported for squaraine-based BHJ solar cells to date. The results also indicate that more ?OH substituents on squaraine dyes do not necessarily lead to better photovoltaic performance.

Unsymmetrical squaraines with new linkage manner for high-performance solution-processed small-molecule organic photovoltaic cells

Squaraines are promising donor materials because of their strong and broad absorption band in the visible and near infrared regions which is suitable for application in organic photovoltaic (OPV) cells. Two unsymmetrical squaraines (USQs), namely BIBISQ and TIBISQ, with two electron-donating aryls directly linked to the electron-withdrawing squaric acid core (Y-manner) can act as high performance donor materials for solution-processed bulk-heterojunction (BHJ) OPV cells. Both USQs show ideal low bandgaps (1.47 eV for BIBISQ and 1.39 eV for TIBISQ) with an intense and broad absorption band in the range of 500-900 nm, and relatively low HOMO levels of ～-5.10 eV. The BHJ-OPV device based on both of them simultaneously showed excellent short current density (Jsc) (over 13 mA cm-2), open circuit voltage (Voc) (0.84 V), fill factor (FF) (0.49) and power conversion efficiency (PCE) of over 5% under a blend ratio of USQs:PC71BM = 1:3. These results indicate that the two USQs are quite promising candidates for small molecular (SM) OPV cells and the Y-manner should be a quite successful linking method for USQs.