| Synonyms: | Acetic acid, 2,2',2''-[[28-(carboxymethoxy)-5,11,17,23-tetrakis(1,1-dimethylethyl)pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3,5,7(28),9,11,13(27),15,17,19(26),21,23-dodecaene-25,26,27-triyl]tris(oxy)]tris-, 1,1',1''-triethyl ester;4-tert-Butylcalix[4]arene-tetraacetic acid triethyl ester |