Biotinylated Human TNF-alpha, epitope tag free, ultra sensitivity (primary amine labeling)

Biotinylated Human TNF-alpha, epitope tag free, ultra sensitivity (primary amine labeling) Human epitope tag free expression system: HEK293 UltraLys Size: 25ug Uni-Prot ID P01375 MW: 17.4 kDa Express Region of the protein: Val 77 - Leu 233 Purity: >95% as determined by reduced SDS-PAGE. Less than 1.0 EU per μg by the LAL method. Buffer: PBS, pH7.4 Shipping format and conditions: Powder,RT Storage upon receival: -20℃