CAS 54247-05-1 appears in our catalog under these names: 1,3-Dinitrobenzene D4, 1,3-Dinitrobenzene-d4, 98 atom % D, min 98% Chemical Purity, 1,3-DINITROBENZENE-D4, 98 ATOM % D. Offered by: Dr. Ehrenstorfer, CDN, Sigma-Aldrich. Available pack sizes: 50mg, 5g, 1G.