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368598

Sigma-Aldrich

4,4′-Bis(2-benzoxazolyl)stilbene

97%

Synonym(s):

1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene, 2,2′-(1,2-Ethenediyl)bis(4,1-phenylene)bisbenzoxazole, 2,2′-(1,2-Ethenediyldi-4,1-phenylene)bis[benzoxazole], 2,2′-(Vinylenedi-p-phenylene)bisbenzoxazole, 2-[4-[2-[4-(1,3-Benzoxazol-2-yl)phenyl]ethenyl]phenyl]-1,3-benzoxazole, 4,4′-Di(benzoxazol-2-yl)stilbene, p,p′-Bis(2-benzoxazolyl)stilbene

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About This Item

Empirical Formula (Hill Notation):
C28H18N2O2
CAS Number:
1533-45-5
Molecular Weight:
414.45
EC Number:
216-245-3
MDL number:
MFCD00022846
UNSPSC Code:
12352100
PubChem Substance ID:
24862920
NACRES:
NA.22

Quality Level

100

Assay

97%

form

powder

mp

>300 °C (lit.)

λmax

372 nm

SMILES string

c1ccc2oc(nc2c1)-c3ccc(\C=C\c4ccc(cc4)-c5nc6ccccc6o5)cc3

InChI

1S/C28H18N2O2/c1-3-7-25-23(5-1)29-27(31-25)21-15-11-19(12-16-21)9-10-20-13-17-22(18-14-20)28-30-24-6-2-4-8-26(24)32-28/h1-18H/b10-9+

InChI key

ORACIQIJMCYPHQ-MDZDMXLPSA-N

Related Categories

General description

4,4′-Bis(2-benzoxazolyl)stilbene (BBS) is reported to exhibit consistently high absolute fluorescence quantum yields and a monoexponential lifetime in solutions. The photophysics of BBS dispersed in poly(propylene) (PP) films has been investigated. BBS is reported as a food-grade dye. BBS is also reported as excimer-forming, photoluminescent chromophore.

Application

4,4′-Bis(2-benzoxazolyl)stilbene (BBS) is suitable for use in the preparation of poly(propylene) (PP) films containing different concentrations of BBS. BBS may be employed as a viscosity-sensitive fluorophore to investigate the curing parameters in fabrication of UV-cured automotive organic protective coatings. BBS may be used in the preparation of polymeric film sensors based on excimer luminescence and responsive to both mechanical and temperature stress, by its dispersion into a thermoplastic aliphatic biodegradable polyester [poly(1,4-butylene succinate).
Optical brightener for plastics

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCT5128
MKBK9551V
07626JX

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Luminescent bis (benzoxazolyl) stilbene as a molecular probe for poly (propylene) film deformation.
Pucci A, et al.
Macromolecular Rapid Communications, 26(13), 1043-1048 (2005)
Radislav A Potyrailo et al.
Analytical chemistry, 74(21), 5676-5680 (2002-11-16)
An automated analytical system has been implemented for the high-throughput optimization of processing conditions such as curing parameters in fabrication of UV-cured automotive organic protective coatings. Selection of optimum process conditions of combinatorial arrays of coatings is essential to correlate
Chao Zhang et al.
ACS nano, 7(5), 4561-4568 (2013-05-01)
Food safety is a constant concern for humans. Besides adulteration and contamination, another major threat comes from the spontaneous spoilage of perishable products, which is basically inevitable and highly dependent on the temperature history during the custody chain. For advanced
M Amine Fourati et al.
The journal of physical chemistry. A, 117(5), 836-844 (2013-01-12)
In solution, 4,4'-bis(2-benzoxazolyl)stilbene (BBS) was found to exhibit consistently high absolute fluorescence quantum yields (Φ(fl) ≥ 0.88) and a monoexponential lifetime, both independent of BBS concentration. The BBS steady-state and time-resolved photophysics were investigated by different techniques to understand the
Bis (benzoxazolyl) stilbene excimers as temperature and deformation sensors for biodegradable poly (1, 4-butylene succinate) films.
Cuia FD.
Journal of Materials Chemistry, 17(8), 1043-1048 (2005)
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