CAS 5242-49-9 Fluorescent Brightener KS-N-Professional supplier
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We can supply Fluorescent Brightener KS-N (CAS:5242-49-9) with stable quality and bulk stock.
Specification of Fluorescent Brightener KS-N
| Item | Specifications |
| Appearance | Light yellow-green crystalline powder |
| Assay (HPLC) | ≥99.0% |
| Melting Point | >273°C (decomposed) |
| Ash Content | ≤0.50% |
| Fluorescent Shade | Blue-violet |
Basic information of Fluorescent Brightener KS-N
CAS:5242-49-9
Standard:Technical grade
Model:SC-001
Production Capacity:50MT/month
Certificate: ISO, COA, MSDS
Loading port: Shanghai
Synonyms:4-(2-Benzoxazolyl)-4′-(5-methyl-2-benzoxazolyl)stilbene; Hostalux KSN; Cinopal 3685; FBA 368; Optical Brightener KSN; 5-methyl-2,2′-(vinylenedi-p-phenylene)bisbenzoxazole
MF:C29H20N2O2
Usage of Fluorescent Brightener KS-N
1.High-temperature plastic whitening auxiliary
Fluorescent Brightener KS-N is used as excellent thermal stability, compatible with PP, PE, PVC, ABS, PC, PET, plastic masterbatch, film, injection and extrusion products. Low addition dosage (0.002%–0.05%) delivers strong blue-violet fluorescence to offset polymer yellowing, better whitening performance than OB-1 series brighteners.
2.Synthetic fiber optical brightener
Fluorescent Brightener KS-N is used as applied to polyester, polyamide, polyacrylonitrile, silk and wool fabrics for high-temperature dyeing and padding process, improving fabric whiteness, brightness and light fastness.
3.Synthetic leather & industrial coating brightener
Fluorescent Brightener KS-N is used as added to artificial leather, plastic coatings and industrial paints to enhance surface gloss and whiteness.
4.Polymer polymerization stage whitening raw material
Fluorescent Brightener KS-N is used as can be added during monomer polymerization to realize uniform permanent whitening of finished polymer products.
Package of Fluorescent Brightener KS-N
25kg/bag or according to the customers’ demand
Storage of Fluorescent Brightener KS-N
Stored in the dry and ventilated inside storeroom, prevent direct sunlight, slightly pile and put down.





