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

荧光增白剂OB

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. It is also known as BBOT, Fluorescent Brightener 184 and 2,2'-(2,5-Thienediyl)bis[5-(1,1-dimethylethyl)-1,3-benzoxazole]. 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-1131181-6

Molecular Formula

C₂₆H₂₆N₂O₂S

Chinese Name

荧光增白剂OB

Molecular Weight

430.562 g/mol

Category

Organic Compounds

Last updated

8/21/2026