meso-butestrol meso-butestrol meso-butestrol (developmental code name sc-3402), also known as 2,3-bis(4-hydroxyphenyl)butane, is a synthetic nonsteroidal estrogen which was never marketed. it is a so-called "short-acting" or "impeded" estrogen. meso-butestrol is structurally related to diethylstilbestrol and other stilbestrols. the fully potent counterpart to meso-butestrol is meso-hexestrol, analogously to the relationship of dimethylstilbestrol to diethylstilbestrol. meso-butestrolclinical dataother namesmeso-butoestrol; sc-3402; mbe3; meso-2,3-bis(4-hydroxyphenyl)-n-butanedrug classnonsteroidal estrogenidentifiers iupac name 4-phenol cas number2962-14-3 ypubchem cid200945chemspider173970uniipq4gvs4t9schemblchembl326340comptox dashboard (epa)dtxsid00183802 chemical and physical dataformulac16h18o2molar mass242.318 g·mol−13d model (jsmol)interactive image smiles c(c1=cc=c(c=c1)o)(c)c2=cc=c(c=c2)o inchi inchi=1s/c16h18o2/c1-11(13-3-7-15(17)8-4-13)12(2)14-5-9-16(18)10-6-14/h3-12,17-18h,1-2h3/t11-,12+key:gduyfvytxyomsj-txejjxnpsa-n