Sold in amber glass bottles.
 
This D.P.X Neutral Mounting Medium in Standard Viscosity (CAS # 8037-20-7, Chemical Formula C24H28O8, Molecular Weight 436.5 g/mol) is a permanent mounting medium for light microscopy and can be used to mount slides of histological sections, cytological preparations, and tissue culture cells.
 
It is an aqueous mounting medium and has a high refractive index.
 
This product can be used for long-term storage of slides and provides excellent optical clarity.
 
PubMed link: https://pubmed.ncbi.nlm.nih.gov/32049996/ Common uses include mounting of histological sections, cytological preparations, and tissue culture cells.