2,2'-(2,5-thiophenediyl)bis[5-(1,1-dimethylethyl)-Benzoxazole , 99% , 7128-64-5

Synonym(s):
BBOT

CAS NO.：7128-64-5

Empirical Formula: C26H26N2O2S

Molecular Weight: 430.56

MDL number: MFCD00005774

EINECS: 230-426-4

PRODUCT 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
• storage temp.: Keep in dark place,Sealed in dry,Room Temperature
• solubility: toluene: soluble50mg/mL
• pka: 3.03±0.10(Predicted)
• form: powder
• color: Pale Green to Yellow
• Appearance: Pale green to yellow solid
• Water Solubility: Soluble in acetone and toluene. Insoluble in water.
• λmax: 373nm(EtOH)(lit.)
• ε(extinction coefficient): ≥47000 at 372-374nm in dioxane
• Merck: 14,1014
• BRN: 631803
• Stability: Stable. Incompatible with strong oxidizing agents.
• InChIKey: AIXZBGVLNVRQSS-UHFFFAOYSA-N
• LogP: 8.6 at 25℃
• 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)

Description and Uses

2,5-Bis(5-tert-butylbenzooxazol-2-yl)thiophene is a fluorescent dye used to prepare stable fluorescent silica nanoparticles as DNA carrier.

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.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319
• Precautionary statements: P261-P271-P280
• Risk Statements: 36/37/38
• Safety Statements: 24/25
• WGK Germany: 1
• RTECS: DM4888332
• TSCA: Yes
• HS Code: 29349990
• Toxicity: LD50 orl-rat: >10 g/kg MVCRB3 2,193,1973