X-ray powder diffraction data for (S)-methyl-2-hexanamido-3-(4-hydroxyphenyl)propanoate, C16H23NO4, are reported [a = 17.795(4) angstrom, b = 15.101(1) angstrom, c= 12.746(3) angstrom. unit-cell volume V= 3425.51 angstrom(3), Z = 8, and space group P2(1)2(1)2(1)]. All measured lines were indexed and are consistent with the P2(1)2(1)2(1) space group. No detectable impurities were observed. The single crystallographic data of the compound are also reported [a = 12.5998(3) angstrom, b= 17.6856(5) angstrom, c= 14.6711(5) angstrom, unit-cell volume V= 3269.25(16) angstrom(3), Z= 8, and space group P2(1)2(1)2(1)]. Because of the single-crystal diffraction data were measured at low temperature (110 K), the cell parameters, volume, and calculated density of single-crystal experiment have slight differences with powder diffraction results. (C) 2018 International Centre for Diffraction Data.