CAS 66521-35-5 appears in our catalog under these names: 5-Methoxytryptamine-alpha,alpha,beta,beta-d4 HCl, 98 atom % D, min 98% Chemical Purity, 5-Methoxytryptamine-alpha,alpha,beta,beta-d4 hydrochloride. Offered by: CDN, Biosynth. Available pack sizes: 0,05g, 0,01g, 10mg, 25mg, 50mg.