CAS 38053 appears in our catalog under these names: 6-Methylpurine, 95%, 2-(Trimethylsiloxy)-1,3-butadiene, 97%, 4-(4-Chlorophenyl)-2,4-dioxobutanoic acid, 95%, 2-Trimethylsilyloxy-1,3-butadiene, >95.0%(GC), (Buta-1,3-dien-2-yloxy)trimethylsilane 95%. Offered by: Fluorochem, Combi-blocks, Chemat Brand, TCI, Ambeed. Available pack sizes: 1g, 5g, 10g, 25g, 100g, on request, 5ml, 25ml.