Recom Hek 293 M-Csf Cellexp 95% 250Ug. CellExp M-CSF, Human Recombinant, Source: HEK 293 cells, Purity by SDS-PAGE/=95%, 223 amino acids (Glu 33 - Arg 255) with a 6x-His tag at C-terminus, and a calculated MW of 26 kDa, Synonyms: CSF-1, Lanimostim, MCS