\\ Species Tag: & 56004 & Name:& C2H5CN-15 \\ Version: & 1 & & Ethyl cyanide, \\ Date: & Jan. 1980 & & $^{15}$N isotope \\ Contributor:& R. L. Poynter & & \\ & & & \\ Lines Listed: & 1621 & Q(300.0)=& 38459.180 \\ Freq. (GHz) $<$ & 1077 & Q(225.0)=& 24980.445 \\ Max. J: & 20 & Q(150.0)=& 13598.785 \\ LOGSTR0= & -8.7 & Q(75.00)=& 3966.433 \\ LOGSTR1= & -7.7 & Q(37.50)=& 1542.411 \\ Isotope Corr.: & -2.432 & Q(18.75)=& 598.136 \\ Egy. (cm$^{-1}$) $>$& 0.0 & Q(9.375)=& 213.895 \\ $\mu_a$ = & 3.84 & A=& 27541.953 \\ $\mu_b$ = & 1.37 & B=& 4574.771 \\ $\mu_c$ = & & C=& 4119.430 \headend The experimental measurements were analyzed using the methods described in W. H. Kirchhoff, 1972, J. Mol. Spect. {\bf 41}, 333. The measurements were taken from H. M. Heise, H. M\"ader, and H. Dreizler, 1976, Z. Naturforsch. {\bf 31a}, 1228. The dipole is an approximate value.