Optical brightener OB 1

Appeaance

Yellowish Crystaline Powder

Purity

98.00%

Chemical Name

Benzoxazole,2,2'-(1,2-ethenediyldi-4,1-phenylene)bis-

Synonyms

Benzoxazole,2,2'-(vinylenedi-p-phenylene)bis- (7CI,8CI);2,2'-(Vinylenedi-p-phenylene)bisbenzoxazole;4,4'-Bis(2-benzoxazolyl)stilbene;4,4'-Di(benzoxazol-2-yl)stilbene;C.I. 40674;C.I. Fluorescent Brightener 393;Eastobrite OB 1;Eastobrite OB 3;Fluorescent Brightener 393;OB 1;OpticalBrightener 1;TM;TM (UV stabilizer);Uvitex OB 1;Uvitex OB-ONE;p,p'-Bis(2-benzoxazolyl)stilbene;Fluorescent Brightener CI393 OB-1;

CAS NO.

1533-45-5

C₂₈H₁₈N₂O₂

Molecular Wt

414.46

Chemical Structure

Solubility

Melting point

>300 °C(lit.)

Density

Hazard class Code

SAFETY INSTRUCTIONS

Application

whitening of polyester and nylon; also used in ABS, PS, HIPS, PA,

PC, PP, EVA, PVC, PU

Usage

Packing