The Dolphin CCL4 yeast-derived recombinant protein is not tagged and is naturally endotoxin-free. The purity is greater than 98% as visualized by SDS-PAGE analysis. Dolphin CCL4 applications are for cell culture, ELISA standard, and Western Blot Control. Dolphin CCL4 yeast-derived recombinant protein can be purchased in multiple sizes. Dolphin CCL4 Specifications: (Molecular Weight: 8.4 kDa) (Amino Acid Sequence: LEKRAPMSSD PPTACCFTYT LRKLPRHFVI DYYETSSLCS QPAVVFQTKK GRQVCANPSD PWVQEYMDDL ELN (73)) (Gene ID: 101330472). For research use only. Made in the USA