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By certification 
FLUORESCENT BRIGHTENER KSN
C.I.368 CAS：5242-49-9
STRUCTURE:
CHEMICAL NAME: 4-(2-Benzoxazolyl)-4'-(5-methyl-2-benzoxazolyl)stilbene
MOLECULAR FORMULA: C29H20N2O2 (As International relative Atom Mass 1997)
MOLECULAR WEIGHT:428.49
EXCUTIVE STANDARD: Q/LQH009-2003
SPECIFICATIONS:
| Item | Indices |
Appearance |
Kelly powder |
Purity |
≥ 98.5% |
Melting point |
Over 300℃ |
Ash |
≤ 0.5％ |
Volatile content |
≤ 0.5% |
PROPERTIES:
1.Low use level, high whitening intensity
2.Wide suitability, widely used in the whitening of polyesters and plastics
3.Excellent compatibility with plastic; excellent resistance to high temperature and weathering.
DIRECTION FOR USAGE:
Suitable for the whitening of polyesters, PA, polyacrylonitrile. Widely used for film, injection and extrusion materials, etc. Suitable for the whitening of high polymers. Dosage: 0.005%-0.05%
PACKAGE: Packaged in 25kg drums or carton. Or according to customer’s requirement.
STORAGE: Should be stored in cool and dry place, avoid light.
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