Green Chemistry Metric: iSUSTAIN™ Green Chemistry Index v2.0

The iSUSTAIN™ Green Chemistry Index is a tool which provides a methodology to generate a sustainability-based score for chemical products and processes. It contains a set of sustainability metrics based on the Twelve Principles of Green Chemistry* and takes into account such factors as waste generation, energy usage, health and environmental impact of raw materials and products, safety of processing steps, and others.

To use the iSUSTAIN™ Index, the user generates a scenario. The scenario contains information on the materials going into a process (the Bill of Materials In or BOM In), the materials out of a process (the product and any waste streams – the Bill of Materials Out or BOM Out) and the conditions used for the various steps in a process (the Process Steps). Several alternative scenarios can be generated for the same product/process, making changes within them to evaluate their effect on the overall sustainability score, thus allowing the user to do a “what-if” analysis.

The internet-based version of the iSUSTAIN™ Green Chemistry Index was developed with two goals in mind:

  • Afford a measure of the sustainability for products/processes to both develop an initial sustainability baseline and provide guidance for process improvement
  • Act as a learning tool for the scientific community to provide increased familiarity with the Twelve Principles of Green chemistry and help scientists gain an appreciation of the factors within their control that can affect the overall sustainability of their processes

The iSUSTAIN™ Green Chemistry Index has been developed through an alliance between Cytec Industries Inc., a sustainability-minded specialty chemicals and materials company; Sopheon, a leading provider of software and services for product lifecycle management; and Beyond Benign, a non-profit organization dedicated to green chemistry education and training.