Primate Biologicals supplies research-grade cynomolgus monkey cerebrospinal fluid (CSF) exclusively sourced from healthy, SPF-status Macaca fascicularis housed at USDA-licensed facilities in the United States. Our cynomolgus CSF is available as pooled or individual donor samples in both fresh and cryopreserved formats to support your neuroscience research, CNS drug development, and preclinical toxicology studies.