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223999

Sigma-Aldrich

2,5-Bis(5-tert-butyl-benzoxazol-2-yl)thiophene

suitable for scintillation, 99%

Synonym(s):

BBOT

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About This Item

Empirical Formula (Hill Notation):
C26H26N2O2S
CAS Number:
7128-64-5
Molecular Weight:
430.56
Beilstein/REAXYS Number:
631803
EC Number:
230-426-4
MDL number:
MFCD00005774
UNSPSC Code:
12171500
PubChem Substance ID:
24853416
NACRES:
NA.47

Quality Level

200

assay

99%

form

powder

color

yellow to green

mp

199-201 °C (lit.)

solubility

toluene: 50 mg/mL

density

1.272 g/cm3 at 20 °C

ε (extinction coefficient)

≥47000 at 372-374 nm in dioxane

suitability

suitable for scintillation

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

CC(C)(C)c1ccc2oc(nc2c1)-c3ccc(s3)-c4nc5cc(ccc5o4)C(C)(C)C

InChI

1S/C26H26N2O2S/c1-25(2,3)15-7-9-19-17(13-15)27-23(29-19)21-11-12-22(31-21)24-28-18-14-16(26(4,5)6)8-10-20(18)30-24/h7-14H,1-6H3

InChI key

AIXZBGVLNVRQSS-UHFFFAOYSA-N

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General description

2,5-Bis(5-tert-butyl-benzoxazol-2-yl)thiophene known as BBT is a commercially available safe fluorescent brightener. It is a light-emitting chemical compound that is a benzoxazole derivative. The molecule has excellent UV-Visible absorption property and outstanding fluorescent ability. These physical properties allow them to act as high-performance photoinitiators. It is a commercially available safe fluorescent brightener. The molecule has excellent UV-Visible absorption property and outstanding fluorescent ability.

Application

2,5-Bis(5-tert-butyl-benzoxazol-2-yl)thiophene is usually used as an optical brightener. It is suitable for photoluminescence experiments on doped silica films. It is also suitable to visualize ultraviolet (UV)-patterned acrylic pressure-sensitive adhesives.

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Description
Pricing

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Yin Zheng et al.
International journal of nanomedicine, 11, 5971-5987 (2016-11-24)
Nanoemulsions (NEs) are used as transdermal drug delivery systems for systematic therapeutic purposes. We hypothesized that the skin permeation profile of an NE could be modulated by incorporating it into a hydrogel containing differing proportions of thickening agent. The objectives
Eva E Stüeken et al.
Rapid communications in mass spectrometry : RCM, 34(18), e8821-e8821 (2020-05-03)
Elemental abundances and isotopic ratios of carbon, nitrogen, sulfur and hydrogen have become important tools for reconstructing the evolution of Earth and life over geologic timescales, requiring accurate and precise analytical methods with high sample throughput. However, these measurements may
Xiaoling Zuo et al.
Macromolecular rapid communications, 37(10), 840-844 (2016-04-14)
The photochemical and electrochemical investigations of commercially available, safe, and cheap fluorescent brighteners, namely, triazinylstilbene (commercial name: fluorescent brightener 28) and 2,5-bis(5-tert-butyl-benzoxazol-2-yl)thiophene, as well as their original use as photoinitiators of polymerization upon light emitting diode (LED) irradiation are reported.
M Amine Fourati et al.
The journal of physical chemistry. B, 115(43), 12362-12369 (2011-09-16)
The photophysics of 2,5-bis(5-tert-butyl-benzoxazol-2-yl)thiophene (BBT) were investigated for assessing its limitations for use as a universal fluorophore and as a viable sensor for both polymeric and solution studies. This is of importance given the limitations of currently used materials. BBT's
Sudha M Srinivasan et al.
Review journal of autism and developmental disorders, 5(2), 156-175 (2018-10-16)
Literature on effects of equine therapy in individuals with autism spectrum disorder (ASD) has grown in recent times. Equine therapy is an alternative multimodal intervention that involves utilizing a horse to enhance core impairments in ASD. Recent systematic reviews in
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