The Department of Commerce, specifically the National Institute of Standards and Technology (NIST), is seeking sources for the procurement of lyophilized and fixed mammalian cells intended for cell counting applications. This opportunity aims to acquire biological products that are crucial for various research and development activities within the institute, emphasizing the importance of accurate cell counting in biological and medical research. Interested vendors should note that the place of performance is in Gaithersburg, Maryland, and are encouraged to reach out to Don Graham at deg@NIST.GOV or by phone at 301-975-8567 for further inquiries regarding this sources sought notice.