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HomeProduct name list2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene

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

Synonym(s):BBOT

  • CAS NO.:7128-64-5
  • Empirical Formula: C26H26N2O2S
  • Molecular Weight: 430.56
  • MDL number: MFCD00005774
  • EINECS: 230-426-4
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-11-05 19:05:58
2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Structural

What is 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene?

Chemical properties

light yellow-green crystals

The Uses of 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene 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, paint, coating and printing ink. It is also useful in detecting the presence of thin-film electrical contact lubricants.

The Uses of 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene

Optical brightener additive in polymers, fibers, films, inks, laquers, and paints. In liquid scintillators.

Flammability and Explosibility

Not classified

Safety Profile

Low toxicity by ingestion. Whenheated to decomposition it emits toxic vapors of NOx andSOx.

Properties and Applications

TEST ITEMS

SPECIFICATION

APPEARANCE

LIGHT YELLOW OR MILK WHITE POWDER

SHADE

LIGHT YELLOWISH

METLING POINT

201-202 ° C

PURITY

99% min

FINENESS

300 mesh min

SOLUBILITY

hardly soluble in water,but soluble in paraffin, mineral oils and ordinary organic solvents.

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

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
storage temp.  Keep in dark place,Sealed in dry,Room Temperature
solubility  toluene: soluble50mg/mL
form  powder
pka 3.03±0.10(Predicted)
color  Pale Green to Yellow
Water Solubility  Soluble in acetone and toluene. Insoluble in water.
λmax 373nm(EtOH)(lit.)
Merck  14,1014
BRN  631803
Stability: Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference 7128-64-5(CAS DataBase Reference)
NIST Chemistry Reference Benzoxazole, 2,2'-(2,5-thiophenediyl)bis[5-(1,1-dimethylethyl)-(7128-64-5)
EPA Substance Registry System 2,2'-(2,5-Thiophenediyl)bis[5-tert-butylbenzoxazole] (7128-64-5)

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

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P271:Use only outdoors or in a well-ventilated area.
P280:Wear protective gloves/protective clothing/eye protection/face protection.

Computed Descriptors for 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene

InChIKey AIXZBGVLNVRQSS-UHFFFAOYSA-N

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