CAS No. [2440-22-4]
Chemical name: 2-(2-hydroxy-5-methylphenyl)benzotriazole
Molecular formula: C13H11N3O
Molecular weight: 225.3
Specification:
Appearance: white to light yellow powder
Assay: 99% min.
Melting point: 128.0-132.0癈
Loss on drying: 0.5% max.
Ash: 0.1% max.
Transmittance:
at 440nm: 97% min.
at 500nm: 98% min.
Packing: 20/25kg fiber drum
Usage:
As the ultraviolet absorption agent, it is available to polyester, epoxy, cellulose acetate, PVC, polystyrene, plexiglass and polyacrylonitrile resin etc. The maximum absorbing wavelength range is 270-380nm.
Molecular structure:
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