YISORB^® UV-571

• Chemical Name:

  2-(2H- benzotriazol-2-yl)-6-(dodecyl)-4-methylphenol

• Molecular Formula:

  C₂₅H₃₅N₃O

• Molecular Weight:

  394

• CAS :

  125304-04-3

• Appearance

  Yellow or yellowish-brown transparent liquid

• Assay (%)

  ≥98.0

• Color (Gardner)

  ≤6.0

• Specific Gravity (25℃)

  0.980-1.100

• Refractive Index (25℃)

  1.5550-1.5750

• Light Transmittance (%)

  450nm:≥90.0
  500nm:≥95.0

• Weight Loss (%)

  1

  2

  5

• Temperature (℃)

  214

  231

  253

YISORB^® UV-571 is a liquid benzotriazole ultraviolet absorber that absorbs ultraviolet light in the 300-400nm wavelength range. It has good compatibility, low volatility, and high absorption characteristics in various polymers. YISORB ® UV-571 can be used for thermoplastic PUR coating, integral foam plastic, rigid plasticized PVC PVB、PMMA、EVA, high temperature curing unsaturated polyester and spinning aids for PA, PET, PP optical fibers. Also applicable to latex, wax, adhesives, styrene monomers or copolymers, elastomers, and polyolefins.