CAS 4165-56-4 appears in our catalog under these names: 1,4-Dibromobenzene-d4, 99 atom % D, min 98% Chemical Purity, 1,4–Dibromobenzene–d4, Dibromobenzene-D4 99 atom % D, 1,4-DIBROMOBENZENE-D4, 98 ATOM % D, 1,4-Dibromobenzene-d4. Offered by: CDN, GLPBio, Deutero, Sigma-Aldrich, Fluorochem. Available pack sizes: 5g, 10g, 1g, 1 g, 10 g, 5 g.