A specialized arterial fluid for the extreme embalming case. Formulated for autopsied, electrocuted, frozen, or any case which is difficult to firm, “Lithol” is the essential fluid for every embalming room. It has fast, complete saturation and penetration of the tissue and is compatible with any other fluid. “Lithol C/R” imparts a more vivid color and is preferred by the embalmer, which desires cosmetic effect from arterial injection, rather than external application. This arterial fluid produces a desired firmness result and is guaranteed to yield a case free of post-embalming concerns. As with all difficult cases ESCO recommends a pre-injection of Drainage Chemical and “Sofner” for systemic clearance of stain and discoloration. Followed by treatment with one of the “Lithol” fluids.