Product Description: Dihydroergotamine-d3 is deuterium labeled Dihydroergotamine (hydrochloride)[1].
Formula: C33H34D3N5O5
References: [1]Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019 Feb;53(2):211-216.