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Chemical. CAS 492-22-8. Formula C13H8OS. MW 212.27. Thioxanthone is a type II photoinitiator. The high molar absorptivity of thioxanthone in the near-UV spectral region makes this chromophore attractive as a photoinitiator for free-radical polymerization. Thioxanthone-based photoinitiators show some of the best light absorption properties in the near-UV spectral region and are therefore widely used. Spectral data Absorption maximum = 380nm. Also used as building block and intermediate for synthesis.
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Thioxanthone is a heterocyclic organic compound (IUPAC: thioxanthen-9-one; CAS 492-22-8) used as a photocatalyst and photoinitiator in organic synthesis and UV-curing applications. It is typically supplied as a yellow to light-yellow crystalline solid with high purity and participates in electron-transfer and energy-transfer processes, including interactions with metal complexes.
Heterocyclic photocatalyst suitable for photoredox reactions.
Effective photoinitiator for UV-curing coatings and inks.
Yellow to light-yellow crystalline solid for easy handling.
High purity (>98.0%) suitable for research applications.
Molecular weight 212.27 g/mol; chemical formula C13H8OS.
Compatible with metal-complex-mediated merger reactions.
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