The Multi-species CXCL12 yeast-derived recombinant protein is not tagged and is naturally endotoxin-free. The purity is greater than 98% as visualized by SDS-PAGE analysis. Multi-species CXCL12 applications are for cell culture, ELISA standard, and Western Blot Control. Multi-species CXCL12 yeast-derived recombinant protein can be purchased in multiple sizes. Multi-species CXCL12 Specifications: (Molecular Weight: 7.6 kDa) (Amino Acid Sequence: VSLSYRCPCR FFESHVARAN VKHLKILNTP NCALQIVARL KNNNRQVCID PKLKWIQEYL EKALN (65)) (Gene ID: 6387 (human)). For research use only. Made in the USA