107489-37-2 L-Leucine, N-(N-(N2-(1-(N-(N-(N-L-leucyl-L-alpha-glutamyl)-L-alpha-aspartyl)glycyl)-L-prolyl)-L-lysyl)-L-phenylalanyl)- N-(N-(N(sup 2)-(1-(N-(N-(N-L-Leucyl-L-alpha-glutamyl)-L-alpha-aspartyl)glycyl)-L-prolyl)-L-lysyl)-L-phenylalanyl)-L-leucine Thymic humoral factor gamma 2 Thymoctonan Thymoctonan [INN]