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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:
Molecular Weight:
430.56
Beilstein:
631803
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47

Quality Level

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 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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Giuseppe Ferrara et al.
Frontiers in plant science, 9, 1374-1374 (2018-11-14)
Little information is available about nitrogen (N) content and its concentration in table grape vines. Knowledge of the quantity of N accumulated by the vine organs during the season could support sustainable fertilization programs for table grape vineyards. The aim
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
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
Michał Rybak et al.
Water research, 173, 115602-115602 (2020-02-20)
Eutrophication of water bodies markedly reduces their recreational and economic use, which in turn compels those interested to pursuing prompt and effective restoration. This also applies to waters with a moderate pool of biogenic resources which, following temporarily increased nutrient

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