Lonza's Cryopreserved HUVECs are shipped as frozen primaries. They are guaranteed through 15* population doublings (*except HUVEC-XL guaranteed through 5 PD), express CD31/105, von Williebrand Factor VIII, and are positive for acetylated low density lipoprotein uptake. All cells test negative for mycoplasma, bacteria, yeast, and fungi. HIV-1, hepatitis B and hepatitis C are not detected for all donors and/or cell lots. A Certificate of Analysis is provided for each cell lot purchased.Our pooled vs. single donor options allow researchers to study or exclude donor variability from their experiments. Depending upon the study, pooled version is typically utilized to reduce donor variability while single donor option allows researchers to assess donor-specific differences.Content:1 x Cryopreserved Ampule with ≥500,000 cells/vial