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99% Purity Coumarin Derivatives Optical Brightener SWN / MADC For Wool CAS 91-44-1

Good quality Fluorescent Brightening Agents for sales
Good quality Fluorescent Brightening Agents for sales
It is a great and delicated company dealing in chemical auxiliary. Solve problems always timely. We have wonderful cooperation in past few years.

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99% Purity Coumarin Derivatives Optical Brightener SWN / MADC For Wool CAS 91-44-1

Product Details:

Place of Origin: Shanxi China
Brand Name: Colorshine
Certification: SGS
Model Number: 220

Payment & Shipping Terms:

Minimum Order Quantity: Negotiation
Price: Negotiation
Packaging Details: 25kg/plastic drum
Delivery Time: 10 days
Payment Terms: T/T,LC,CAD,DP
Supply Ability: 100 MT monthly
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Detailed Product Description
Classification: Chemical Auxiliary Agent HS CODE: 32042000
MF: C14H17NO2 Other Name: Uvitex SWN/Uvitex SWR/ Blankophor FBO/Kayaphor WN
Application: Acetate Fiber/ Polyster Fiber Apprearance: Light Yellowish Even Powder
CAS No.: 61968-71-6/91-44-1 Usage: H/S-PVC/Wool/Silk/Polyamide/Acrylic Fiber
Purity: 99% Min

99% Purity Coumarin Derivatives Optical Brightener SWN / MADC For Wool CAS 91-44-1​



1. General Information of Optical Brightener SWN (C.I. 140)




C.I. 140/61 CAS 61968-71-6/91-44-1
Structure: Coumarin Derivatives Purity: 99%min
Appearance:Off-white powder Melting point:69.5~71.0
Strength: 100±2% Moisture:0.5%max

99% Purity Coumarin Derivatives Optical Brightener SWN / MADC For Wool CAS 91-44-1


(1) multipurpose brightener with excellent whiteness, soluble in ethanol but insoluble in water.
(2) having properties of good solubility and compatibility.


2. Application and procedure of Optical Brightener SWN

Optical brightener SWN is mainly used for brightening the wool, natural silk, nylon, acetate fiber and the cellulose triacetate. It can also used for brightening the cotton and acrylic fiber. It can add the resin in the detergent for washing the fabrics and can improve the fabrics' external whiteness after washing within the range of Ph=3-11. Meantime it can be used on the coating paper and used at the aspect of plastic and coating of chromaticity printing. It is suitable for exhausting and continuous process.

99% Purity Coumarin Derivatives Optical Brightener SWN / MADC For Wool CAS 91-44-1

3. Packing and Shipping

Optical Brightener SWN is packed in 25 kg kraft bag with pallets.

We have rich experiences in exporting and importing. We have good cooperation with world wide Express like DHL, UPS etc and also shipping line to ensure the samples and goods can be reach to the cutomers at soonest speed.


4. Quality Contral and R&D

We have more than 15 years of production and we also have experienced technical person to do testing and gurantee the quality during the whole production line.In past few years our team strive to develop new products which are enviromental friendly and energy

saving. We believe with our fulfillment to be the best enterprise for our customers. Under their efforts the Optical brightener has achieved national advanced level.


5. Production line

Shanxi Colorshine Chemical Industry 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 Optical brighteners,Dyes and Carbon Black, fine chemicals and intermediates, which are widely used in detergent,paper-making, textile, rubber industry, medical industry, paints, printing inks and etc.

Our company's headquarters is based in Linfen City, Shanxi Province. We are establishing technical cooperation with Linfen Tech University, and manufacture products according to different customers’ requirements to fulfill market’s demand.

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.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.

Contact Details

Contact Person: Ms. Sunny

Tel: 86-357-2228987

Fax: 86-357-2228986

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