Basic

CAS No.	7128-64-5;12224-40-7;52232-33-4
Product Name	2,5-Di(5-tert-butylbenzoxazol-2-yl)thiophene
Synonyms	Fluorescent Brightener OB; Fluorescent brightening agent 184; Fluorescent Whitening Agent OB; Optical Brightening Agent OB; Fluorescent Brightener 184; C.I. 184; Fluorescent Brightener OB-4; Fluorescent brightening agent 184; Optical Brightner OB; BBOT; C.I. Fluorescent Brightener 362; Uvitex 2B; TINOPAL CBS-X; UVITEX OB; UVITEX(R) 2B; TOSLAB 644820; 2,5-BIS(5'-TERT-BUTYL-2'-BENZOXAZOLYL)THIOPHENE; 2,5-BIS(5-TERT-BUTYL-2-BENZOXAZOLYL)THIOPHENE; 2,5-BIS(5-TERT-BUTYL-BENZOXAZOL-2-YL)THIOPHENE; 2,5-BIS(5-TERT-BUTYLBENZOXAZOYL)-2-THIOPHENE; 2,5-BIS(5-T-BUTYL-2-BENZOXAZOLYL)THIOPHENE
Molecular Formula	C26H26N2O2S
Molecular Weight	430.5618

Physical property

Density	1.185g/cm3
Melting point	196-202℃
Boiling point	531.2°C at 760 mmHg
Flash point	275.1°C
Refractive index	1.617

Safety Description

S24/25:;