2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene
Also known as: BBOT, Fluorescent Brightener 184, 2,2'-(2,5-Thienediyl)bis[5-(1,1-dimethylethyl)-1,3-benzoxazole], 2,2'-(2,5-Thiophenediyl)bis(5-tert-butylbenzoxazole), 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene, Uvitex OB, Optiblanc PL, Eutex OB-RC, FBA 184, 2,5-bis(5-tert-butylbenzo[d]oxazol-2-yl)thiophene
2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene (CAS 7128-64-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C26H26N2O2S and a molecular weight of 430.562 g/mol. Key properties include a melting point of 199-201 °C(lit.), a boiling point of 531.2±45.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 275.1±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 7128-64-5
- Jingsj CID
- J-1131181-2
- Molecular Formula
- C26H26N2O2S
- Molecular Weight
- 430.562 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 199-201 °C(lit.) |
|---|---|
| Boiling Point | 531.2±45.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 275.1±28.7 °C |
| Exact Mass | 430.171509 |
| PSA | 80.30000 |
| LogP | 8.98 |
| Vapor Pressure | 0.0±1.3 mmHg at 25°C |
| Refractive Index | 1.617 |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene?
The CAS number of 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene is 7128-64-5.
What are the molecular formula and molecular weight of 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene?
2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene has molecular formula C26H26N2O2S and molecular weight 430.562 g/mol.
What are the upstream and downstream products of 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene?
For 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene, Upstream Products: thiophene-2,5-dicarboxylic acid, thiophene-2,5-dicarbonyl dichloride.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene (CAS 7128-64-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1131181-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.