pure optical brightener OB-1 1533-45-5

Superiority:

factory optical brightener OB-1 CAS NO.: 1533-45-5

OPTICAL BRIGHTENER/optical brightening/optical brightener/optical brighter/fluorescent brightener/fluorescent  brightening/optical whitener/whitening agent#optical brightener OB,OB-1,FP-127,CBS-X,KCB,KSN,ER#Fluorescent Brightening Agent#fine chemical#China factory#plastic additive

CAS NO.: 1533-45-5
Appearance: Bright green-yellowish crystals powder
Purity: 98.5%Min
Melting point: 355-360°C
Solubility: Insoluble in water, but soluble in high boiling point organic solvent such as 
phenyl-chloride.
Usage: A good whitening agent for polyester-cotton blend fabric or various kinds of plastics and their products under high temperature.

1. Suitable for polyester fiber (PSF), nylon fiber and chemical fiber whitening.

2. suitable for PP, PVC, ABS, PA, PS, PC, PBT plastic whitening brightening, with excellent whitening effect.

3. Suitable for whitening agent concentrated masterbatch added (such as: LDPE color concentrate)

product name: fluorescent brightener compitive optical brightener OB-1 CAS NO.: 1533-45-5

alias: fluorescent brightener ob-1; fba393;2,2'-(4.4'-diphenol vinyl)di-henzoxazol ; 2,2'-(1,2-ethenediyldi-4,1-phenylene)bisbenzoxazole; fba 393; 4,4'-bis(benzoxazol-2-yl)stilbene; optical brightener ob-1; c.i. 393; fluorescent whtening agent ob-1; ; 2,2'-(ethene-1,2-diyldibenzene-4,1-diyl)bis(1,3-benzoxazole); 2,2'-[(e)-ethene-1,2-diyldibenzene-4,1-diyl]bis(1,3-benzoxazole)

cas no: 1533-45-5

ec no: 216-245-3

CI no.:393

molecular formula: c28h18n2o2

molecular weight: 414.4547

structural formula:

appearance: bright yellow crystalline powder

assay: ≥99.0%

melting point: 357-359°c

volatile matters: ≤0.5%

ash: ≤0.1%