Home ProductsOptical Brightener For Plastic

5242-49-9 Optical Brightener For Plastic KSN Optical Brightener For Polyester Plastic PP PVC

Good quality Fluorescent Brightening Agent for sales
Good quality Fluorescent Brightening Agent for sales
Customer Reviews
The goods arrived quickly in the manner provided. Very professional seller service.We'll purchase again and cooperate with you for long time.

—— Giacomo

Package prepration was really fast and the delivery was even faster. Always liked dealing with Lianda company for optical brightener and pretty satisfied with the service and product.

—— Sohail Al

Very good quality and satisfied with the product! You are a very good supplier in China!

—— Jayson

Very good quality and fast delivery, I like it very much! Thank you for all you did.

—— Timya

I'm Online Chat Now

5242-49-9 Optical Brightener For Plastic KSN Optical Brightener For Polyester Plastic PP PVC

China 5242-49-9 Optical Brightener For Plastic KSN Optical Brightener For Polyester Plastic PP PVC supplier

Large Image :  5242-49-9 Optical Brightener For Plastic KSN Optical Brightener For Polyester Plastic PP PVC

Product Details:

Place of Origin: China
Brand Name: Lianda
Certification: SGS
Model Number: KSN

Payment & Shipping Terms:

Minimum Order Quantity: 100kg by sea
Price: Negotiable
Packaging Details: 25kg/drum
Delivery Time: Within 3 working days upon receipt of payment
Payment Terms: L/C,T/T,D/P,D/A,Western union
Supply Ability: 5000 Tons per year
Contact Now
Detailed Product Description
CAS No.: 5242-49-9 Other Names: 4.4-bis(5-methyl-2-benzoxoazol)-ethylene
MF: C29H20N2O2 EINECS No.: 226-044-2
Purity: 99.5% Usage: Coating Auxiliary Agents, Plastic Auxiliary Agents, Rubber Auxiliary Agents, Textile Auxiliary Agents
Appearance: Yellow Crystalline Powder Fineness: >= 120 Mesh

Optical Brightening Agent Ksn Optical Brightener For Polyester Plastic Pp Pvc



Product Name

Optical brightener KSN(C.I. 368)





Other Name


Molecular formula:



Yellow crystalline powder



Melting point







≥ 120 mesh


20kg per carton, 25/30kg per fiber drum with PE liner, or as per the customers' requirements.

It is used in thermoplastic plastics PVC, PE, PP, PS, ABS, SAN, SB, CA, PA, PMMA, acrylic resin, polyester fiber paint, coating the brightening of printing ink.



Bright yellow crystal powder, odorless, Decomposition temperature is large than 275°C. It is hard to dissolve in water.


Dosage: Optical brightener KSN is commonly used in the amount of 0.01-0.03%, that is, each 100kg of the materials, the Optical brightener KSN takes 10g-30g or can be adjusted according to the requirements of the product or test.


Storage: To avoid light, can be stored in cool and dry place for 24 months.


Changsha Lianda Chemical Co., Ltd. is a professional high-tech  enterprise  of optical brightener in China. 

Being founded in 2007, we are the factory and manufacturer engaged in R & D, production, sales and after-sales services of optical brightener for decades of years. Till now, we have developed almost 40 series of the optical brightener, which have been widely used in plastics, textiles, printing and dyeing, paper, paints, coatings etc. Almost 80% of the products has been exported to more than 50 countries and regions such as the United States, Japan, Europe, South America, and the Arabic Area, etc.


We supply:

1. Quality be first! We supply higher than 98% purity of fluorescent brightener powder 

2. We are factory for decades of years with advance technical and testing equipment and very strict control system 

3. OEM and ODM are welcomed

4. Corporate Mode: We treat clients not only as partners also as friends

5. Fast & Cheap Delivery: We have contracted long-term forwarder partners, providing cheapest air, 

express, and ocean shipment according to your requirements, in-time tracking and 

24 hours phone or online after-sales services.



We will achieve this by being a reliable manufacturer to our global clients adhering to the core values of 


- Dedication to our customers’ success


- Respect for our employees


- Innovation


- Integrity


Contact Details
Changsha Lianda Chemical Co., Ltd.

Contact Person: admin

Tel: +8618570351751

Send your inquiry directly to us (0 / 3000)