sr-142948 sr-142948 sr-142948 is a drug used in scientific research which is a non-peptide antagonist selective for the neurotensin receptors, although not selective between subtypes. sr-142948identifiers iupac name 2-(-2-propan-2-ylphenyl]pyrazole-3-carbonyl]amino)adamantane-2-carboxylic acid cas number184162-64-9pubchem cid5311451iuphar/bps1580chemspider4470937 ycomptox dashboard (epa)dtxsid50415529 chemical and physical dataformulac39h51n5o6molar mass685.866 g·mol−13d model (jsmol)interactive image smiles o=c(o)c6(nc(=o)c2nn(c1c(cc(c(=o)n(cccn(c)c)c)cc1)c(c)c)c(c2)c3c(oc)cccc3oc)c4cc5cc6cc(c4)c5 inchi inchi=1s/c39h51n5o6/c1-23(2)29-21-26(37(46)43(5)15-9-14-42(3)4)12-13-31(29)44-32(35-33(49-6)10-8-11-34(35)50-7)22-30(41-44)36(45)40-39(38(47)48)27-17-24-16-25(19-27)20-28(39)18-24/h8,10-13,21-25,27-28h,9,14-20h2,1-7h3,(h,40,45)(h,47,48) ykey:lwulhxvblmwcho-uhfffaoysa-n y (verify) study sr-142948 has been used to study the role of neurotensin in the regulation of dopamine receptor activity and glutamate signalling in the brain. in animal studies, sr-142948 blocked the effects of stimulant drugs, including mdma.