Desmodur® 44 MC Liquid is a monomeric diphenylmethane-4,4'-diisocyanate (MDI).Desmodur® 44 MC Liquid is a monomeric diisocyanate that is solid at room temperature and liquid above around 40 °C. It is suitable for combination with Baycoll®, Desmophen® and Acclaim® in the formulation of adhesives and polyurethane coating resins.