gadofosveset gadofosveset gadofosveset (trade names vasovist, ablavar) is a gadolinium-based mri contrast agent. it was used as the trisodium salt monohydrate form. it acts as a blood pool agent by binding to human serum albumin. the manufacturer (lantheus medical) discontinued production in 2017 due to poor sales. gadofosveset trisodiumclinical datatrade namesvasovist, ablavarroutes ofadministrationintravenousatc codev08ca11 (who) legal statuslegal status us: ℞-only identifiers iupac name trisodium 2-acetate cas number211570-55-7 y 193901-90-5 (anhydrous)pubchem cid158440drugbankdb06705chemspider139381uniixm33q67uvhkeggd08005 ychemical and physical dataformulac33h40gdn3na3o15pmolar mass975.88 g·mol−13d model (jsmol)interactive image smiles ....c(=o)cn(cc()=o)ccn(cc()=o)c(n(cc()=o)cc()=o)cop()(=o)oc3ccc(c1ccccc1)(c2ccccc2)cc3.o inchi inchi=1s/c33h44n3o14p.gd.3na.h2o/c37-28(38)18-34(15-16-35(19-29(39)40)20-30(41)42)17-26(36(21-31(43)44)22-32(45)46)23-49-51(47,48)50-27-11-13-33(14-12-27,24-7-3-1-4-8-24)25-9-5-2-6-10-25;;;;;/h1-10,26-27h,11-23h2,(h,37,38)(h,39,40)(h,41,42)(h,43,44)(h,45,46)(h,47,48);;;;;1h2/q;+3;3*+1;/p-6/t26-;;;;;/m1...../s1key:pizalborpscyju-qsqmuhtisa-h gadofosveset facilitates high-resolution magnetic resonance angiography. ferumoxytol (trade names feraheme, rienso), an intravenous iron-replacement therapy, has been shown to potentially be superior to gadofosveset as a blood pool agent for mr venography in pediatric patients.