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Optical Brightening Agent KCB/ Optical Brightener KCB/ Fluorescent Whitening Agent KCB Uvitex

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Nanjing Lepuz Chemical Co., Ltd.

RM316 Yueyang Business Center, No.7 Qingjiang South Road Nanjing Jiangsu
Contact name
Emily Shen

Quick Information

  • Brand Name: LEPUZ
  • Place of Origin: China
  • Model Number : KCB
  • CAS No. : 5089-22-5
  • Purity : 99


Skype: emily.shen.nj

Product Cate    Optical Brightening Agent For Plastic
Product Name    Optical Brightening Agent KCB
Chemical Name    1,4-Bis(2-benzoxazoly)naphthalene
CAS No.    5089-22-5
C.I. No.    367

Molecular Formula    C24H14N2O2
Molecular Weight    362

Comprehensive application field, good compatibility with all kinds of plastic, excellent stability under all kinds of climate.

Technical Index    
Appearance:yellow crystalline powder 
Melting Point:210-212.C 
Maximum UV Absorption Spectrum:370nm

mainly be used in whitening of synthetic fiber and plastic products, especially good at whitening of EVA.

Packaging & Shipping




Our Services


We have exact inventory plans to guarantee stable supply.


We have many years’ experience of chemical logistics and dangerous chemical managers with specially trained, which ensure the safety and right of chemicals, timely logistics.


Our laboratory takes strictly testing on every lot of goods according to customers’ requirement. Meanwhile we has good relationship with the third party company SGS.


After-sales service is the important part in our service. If there are quality problems, we will actively cooperate with the customers and solve the problems early.


We expect to become good partners with our customers for long.



Company Information






NANJING LEPUZ CHEMICAL CO., LTD. is an ISO-certified modernized chemical enterprise in the collection of R&D, production and sales. Our company concentrates on the production, sales and service for plastic and coating additives, fine chemicals and intermediates, which are widely used in plastic and rubber industry, medical industry, paints, printing inks and etc.


Our company's headquarters is based in Nanjing city, Jiangsu Province. Our factory is located in No.198, Tongda Road, Touqiao Town, Hanjiang District, Yangzhou City, where is adjacent to Guangling Hi-tech Development Zone and near to Yangli Highway, and mainly produce plastic additives such as optical brighteners and etc. We are establishing technical cooperation with Nanjing University, Nanjing Tech University, and manufacture products according to different customers’ requirements to fulfill market’s demand. Except general optical brighteners, we also developed a series of environment-friendly optical brightener products such as NFW liquid by ourselves, which can be used in water-based paints and coatings, and has the advantages of improving the product’s whiteness, reducing the dosage of titanium dioxide. This new product has been widely accepted and in favor by customers at home and abroad.


Except professional R&D team, our factory has advanced production and testing equipments for testing, mixing and post-processing the products in order to ensure the high quality.


With profound chemistry knowledge and rich experience, our business team can offer professional technical supports according to customers’ demand.


We have established good cooperation with many reliable partners and customers in the domestic and overseas market due to many years’ professional knowledge in chemicals, strong sourcing and sales networks, good service and deserved reputation. Till now our products are exported to Japan and South Korea, Southeast Asia, the Middle East, Central and South America, Africa and successfully into Germany, France, the United States and other European markets.


Welcome to contact us. Hope we can have a bright cooperation in future.



Q: Do you have any certificate for quality?

 A: Yes, we have ISO9001:2008 quality system certificate and REACH


Q: Can you customize products?

A: Yes, we can


  • Price Condition : FOB
  • Delivery Port : SHANGHAI

Packaging & Delivery

  • Packing :25KG/drum
  • Delivery Lead Time : 2-7days
  • Minimum Order : 25KG
  • Supply Ability : 5000tons/year

Product Image

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