Beyond PMI: Why The Next Generation of Sustainable Process Development Starts With Solvents

Sustainability in pharmaceutical manufacturing extends far beyond reducing waste or improving Process Mass Intensity (PMI). Solvents account for the majority of process mass in many small-molecule manufacturing operations, yet traditional metrics often fail to capture the true environmental, safety, and operational impact of solvent selection.

A more comprehensive approach is emerging through the use of solvent-focused sustainability metrics that evaluate factors such as human health, waste treatment requirements, flammability, recyclability, and environmental persistence. By identifying high-impact solvents and prioritizing targeted replacement strategies, development teams can uncover opportunities to reduce environmental burden while improving process efficiency, scalability, and operational performance. Real-world analysis demonstrates that a relatively small number of solvents can drive a disproportionately large share of sustainability impact, highlighting where optimization efforts can deliver the greatest value.

Discover how smarter solvent selection can help align sustainability goals with business performance.