CAS 1657033-33-4 appears in our catalog under these names: 2-Methyl-2,6-diazaspiro[3.3]heptane bis(trifluoroacetate), 95%, 2–methyl–2，6–diazaspiro(3·3)heptane bis(trifluoroacetate). Offered by: Combi-blocks, GLPBio. Available pack sizes: 250mg, 1g, 5g.