CAS 1215565-64-2 appears in our catalog under these names: Butabarbital-d5 (ethyl-d5), 99 atom % D, min 98% Chemical Purity, Butabarbital-d5, BUTABARBITAL-D5, 100 UG/ML IN METHANOL&. Offered by: CDN, Biosynth, Sigma-Aldrich. Available pack sizes: 0,01g, 0,005g, 5mg, 10mg, 25mg, 50mg, 1ML.