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High Purity Optical Brightening Agent For Plastic OB-1 C28H18N2O2 Yellowish Green Powder

Basic Information
Place of Origin: CHINA
Brand Name: ARCHTEX
Certification: SGS
Model Number: OB-1
Minimum Order Quantity: 100KGS
Price: negotiable
Packaging Details: 25KG/ drum
Delivery Time: 5-8working days
Payment Terms: L/C, T/T, Western Union, MoneyGram
Supply Ability: 1000 Metric Tons/Metric Ton per month
Detail Information
Appearance: Yellowish Green Powder Mf: C28H18N2O2
Product Name: Fluorescent Brightener Agent Usage: Plastic Auxiliary Agents,Textile Auxiliary Agents,Paper Chemicals,Coating Auxiliary Agents
Cas No.: 1533-45-5 Purity: 99%
Melting Point: ≥359℃ Fineness: 0.050mm
High Light:

fluorescent brightener


fluorescent whitening agent

Product Description

High Purity Optical Brightener Agent / Fluorescent Brightening Agent For Plastic OB-1

Product Features:


Fluorescent Brightener OB-1 is a complex organic compound. Its characteristic is that it can stimulate the incident light to produce fluorescence, so that the dyed substance can obtain a fluorescent effect similar to that of fluorite, and the substance seen by the naked eye is very white, to achieve whitening effect. In daily life, there are many opportunities for exposure to fluorescent agents.


Distyryl double benzoxazole

  • High whitening strength, strong fluorescence.
  • Wide application performance
  • Excellent high temperature performance.


Product Specifications:


Items Index
Product name Optical Brightener OB-1
CAS No 1533-45-5
Chemical name 2.2-(4.4-diphenol vinyl) dibenzoxazol
MF C28H18N2O2
Physical form Yellowish green powder
Melting point ≥359
Purity ≥98
Fineness 0.050
Einecs no. 216-245-3





Fluorescent Brightener OB-1 is mainly used in textiles, papermaking, plastics, coatings, detergents, printing ink, wax, packaging materials, etc. It is only optical brightening and color supplement, and can not replace chemical bleaching. Therefore, the whitening effect can not be obtained fundamentally without bleaching and directly treated with whitening agent.



Packing and Storage:


15kg/Bottle, or 5kg*4 Carton, or 5kg*2 Cartion.
No decomposition at room temperature, but should be stored in a cool and dry place. Keep away from hot, fire source, avoid direct sunlight. Recommended storage and mixing areas have good ventilation conditions to avoid inhalation. Transportation according to the general chemicals.



The dose description:


Add the amount of fluorescent whitening agent ob-1 per 100kg of polymer (reference amount)

Transparent: The amount added is 0.0025-0.005% (2.5g-5g)

The general dosage is: 0.0025-0.025% (2.5g-25g) Not more than 0.03% (30g)

When adding any UV absorber to the polymer, care should be taken to adjust the optimum amount of the optical brightener OB-1.



High Purity Optical Brightening Agent For Plastic OB-1 C28H18N2O2 Yellowish Green Powder 0

High Purity Optical Brightening Agent For Plastic OB-1 C28H18N2O2 Yellowish Green Powder 1

Contact Details

Phone Number : +8613695163789

WhatsApp : +8619805658100