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Optical Brightener KSN CAS No. 5242-49-9 In Yellow Crystalline Powder

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

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Optical Brightener KSN CAS No. 5242-49-9 In Yellow Crystalline Powder

China Optical Brightener KSN CAS No. 5242-49-9 In Yellow Crystalline Powder supplier

Large Image :  Optical Brightener KSN CAS No. 5242-49-9 In Yellow Crystalline Powder

Product Details:

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

Payment & Shipping Terms:

Minimum Order Quantity: Negotiable
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
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Detailed Product Description
Classification: Chemical Auxiliary Agent, Chemical Auxiliary Agent CAS No.: 5242-49-9
Other Names: 4.4-bis(5-methyl-2-benzoxoazol)-ethylene; MF: C30H22N2O2
EINECS No.: 226-044-2 Purity: 99.95%
Type: Carbon Black, Optical Brightener Usage: Coating Auxiliary Agents, Electronics Chemicals, Leather Auxiliary Agents, Paper Chemicals, Petroleum Additives, Plastic Auxiliary Agents, Rubber Auxiliary Agents, Surfactants, Textile Auxiliary Agents, Water Treatment Chemicals
CAS No: 5242-49-9 Fineness: 120mesh
Appearance: Light Yellow Transparent Liquid Application: Painting/detergent
Packing: Optical Brightener Packin In 25kg/drum

Optical brightener KSN CAS No.5242-49-9 in Yellow crystalline powder

Optical Brightener KSN CAS No. 5242-49-9 In Yellow Crystalline Powder

Product Description

  China professional optical brightener manufacturer KSN C.I.368



Product Name

Optical brightener KSN





Other Name


Molecular formula:



Yellow crystalline powder



Melting point







≥ 120 mesh 

Optical brightener Package

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

Optical brightener Applications:
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.


Optical brightener Properties:

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


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


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



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Our Services

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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





1. What type of your company?

  We are engaged in manufacturing and sales of optical brighteners for more than 10 years, we are factory and trading company both. 


2. What’s the procedures?

  Inquiry and offer---Order---Paid---Packing&Loading---Delivery---After-sales services.


3. Can we get free sample?

  Yes, we could offer free sample for test.


4. What’s your warranty?

  3 years warranty.


4. How to add your additives?

Mix our additives evenly with your materials around 8-10 min. And then take our dosage accordingly.


5. Can you specially create formulation for our special demands?

Yes, we have professional engineer team to work for you.


6. What certificates you have ?



Contact Details
Changsha Lianda Chemical Co., Ltd.

Contact Person: admin

Tel: +8618570351751

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