CAS 35981-65-8 appears in our catalog under these names: 1-(3,4,5-Trichlorophenyl)ethanone 97%, 1-(3,4,5-Trichlorophenyl)ethanone, 97%, 97%, 1-(3,4,5-Trichlorophenyl)ethanone, 95%. Offered by: Ambeed, Chemat, Fluorochem. Available pack sizes: 250mg, 1g, 5g.