Specifications:
Fluorescent Brightener KCB
1) Chemical name: 4,4-bis [2-(2-methoxyphenyl) ethenyl]-1,1-biphenyl
2) Index number: C.I.367
3) CAS number: 5089-22-5
4) Appearance: yellowish-green crystalline powder
5) Structure: naphthalene-benzoxazole compound
6) Melting point: 210  212oC
7) Purity: ≥ 99.0%
8) Ash: ≤ 0.5%
9) Max. volatile content: 0.3%
10) Fluorescent tone: bright bluish-white
11) Solubility: soluble in ordinary organic solvents

Fluorescent Brightener FP-127
1) Chemical name: 4,4-bis [2-(2-methoxyphenyl)ethenyl]-1,1-biphenyl
2) Index number: C.I.378
3) CAS number: 40470-68-6
4) Appearance: yellowish-green powder
5) Melting point: 219  221oC
6) Purity: ≥ 99.0%
7) Ash: ≤ 0.3%
8) Max. volatile content: 0.3%
9) Particle size: 200meshes
10) Max. absorption wavelength in ethanol: 375nm
11) Solubility: soluble in organic solvents, such as tetrastyrene
and DMF
12) Heat stability: higher than 300oC, can meet temperature
requirement for processing plastics

Inner packing:
Double PE bags

Outer packing:
1kg barrel or, 5, 10, or 25kg fiber drum