2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene CAS#: 7128-64-5

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Basic information

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Chemical Properties

Melting point:199-201 °C(lit.)
Boiling point:531.2±45.0 °C(Predicted)
Density 1.26
refractive index 1.6360 (estimate)
Flash point:>350°C
solubility toluene: soluble50mg/mL
form powder
pka3.03±0.10(Predicted)
Water Solubility Soluble in acetone and toluene. Insoluble in water.
λmax373nm(EtOH)(lit.)
Merck 14,1014
BRN 631803
Stability:Stable. Incompatible with strong oxidizing agents.
InChIKeyAIXZBGVLNVRQSS-UHFFFAOYSA-N
CAS DataBase Reference7128-64-5(CAS DataBase Reference)
NIST Chemistry ReferenceBenzoxazole, 2,2'-(2,5-thiophenediyl)bis[5-(1,1-dimethylethyl)-(7128-64-5)
EPA Substance Registry System2,2'-(2,5-Thiophenediyl)bis[5-tert-butylbenzoxazole] (7128-64-5)

Safety Information

MSDS

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Usage And Synthesis

Description2,5-Bis (5-tert-butyl-2-benzoxazolyl) thiophene (also known as fluorescent brightener 184)¹ is used as an optical brightener, which converts UV light into visible light. It is also used as a fluorescent brightener for thermoplastic resins of polyvinyl chloride, acrylic resin, polyester fiber, thermoplastic plastic, ABS, cellulose acetate fiber, paint, coating and printing ink. It is also useful in detecting the presence of thin-film electrical contact lubricants^2-4.
Sources
1. https://pubchem.ncbi.nlm.nih.gov/compound/bbot#section=Top
2. https://www.alfa.com/zh-cn/catalog/A14928/
3. http://www.xcolorpigment.com/FLUORESCENT-BRIGHTENER-OB.html
4. http://www.offerchems.com/products/catalyst-auxiliary/fluorescent-brightener-184-cas-7128-64-5/
Chemical Propertieslight yellow-green crystals
UsesOptical brightener additive in polymers, fibers, films, inks, laquers, and paints. In liquid scintillators.
Safety ProfileLow toxicity by ingestion. Whenheated to decomposition it emits toxic vapors of NOx andSOx.

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Preparation Products And Raw materials

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene(7128-64-5)Related Product Information

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