gliadorphin gliadorphin gliadorphin (also known as gluteomorphin) is an opioid peptide that is formed during digestion of the gliadin component of the gluten protein. it is usually broken down into amino acids by digestion enzymes. it has been hypothesized that children with autism have abnormal leakage from the gut of this compound. this is partly the basis for the gluten-free, casein-free diet. abnormally high levels of gliadorphin have been found in the urine of autistic children via mass spectrometry testing. gliadorphin names iupac name l-tyrosyl-l-prolyl-l-glutaminyl-l-prolyl-l-glutaminyl-l-prolyl-l-phenylalanine other names gluteomorphin; gliadorphin-7 identifiers cas number 107936-65-2 3d model (jsmol) interactive image chemspider 115783 pubchem cid 130932 comptox dashboard (epa) dtxsid90893903 inchi inchi=1s/c43h57n9o11/c44-28(23-26-12-14-27(53)15-13-26)40(59)50-20-4-9-32(50)37(56)47-29(16-18-35(45)54)41(60)51-21-5-10-33(51)38(57)48-30(17-19-36(46)55)42(61)52-22-6-11-34(52)39(58)49-31(43(62)63)24-25-7-2-1-3-8-25/h1-3,7-8,12-15,28-34,53h,4-6,9-11,16-24,44h2,(h2,45,54)(h2,46,55)(h,47,56)(h,48,57)(h,49,58)(h,62,63)/t28-,29-,30-,31-,32-,33-,34-/m0/s1key: qgfisqmzjlwfee-nxbwrcjvsa-ninchi=1/c43h57n9o11/c44-28(23-26-12-14-27(53)15-13-26)40(59)50-20-4-9-32(50)37(56)47-29(16-18-35(45)54)41(60)51-21-5-10-33(51)38(57)48-30(17-19-36(46)55)42(61)52-22-6-11-34(52)39(58)49-31(43(62)63)24-25-7-2-1-3-8-25/h1-3,7-8,12-15,28-34,53h,4-6,9-11,16-24,44h2,(h2,45,54)(h2,46,55)(h,47,56)(h,48,57)(h,49,58)(h,62,63)/t28-,29-,30-,31-,32-,33-,34-/m0/s1key: qgfisqmzjlwfee-nxbwrcjvbl smiles c1ccc(cc1)c(c(=o)o)nc(=o)2cccn2c(=o)(ccc(=o)n)nc(=o)3cccn3c(=o)(ccc(=o)n)nc(=o)4cccn4c(=o)(cc5ccc(cc5)o)n properties chemical formula c43h57n9o11 molar mass 875.981 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references