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Leveraging chemical list screening to achieve business goals
How chemical list screening can strategically inform business decisions on chemicals management and product compliance
Chemical list screening is a vital strategy to enhance your chemicals management process, from offering insight into which chemicals are subject to regulatory requirements to anticipating emerging concerns that could impact your business in the future.
However, chemical list screening is becoming more complex due to:
- The growing number of differing regulations worldwide
- The rapid pace of regulatory changes
- The drive for safer chemicals
In our webinar, Strategic chemical list screening: Compliance and beyond, experts from our Enhesa toxicology team shared best practices for overcoming the most common challenges in chemical list screening – and how to turn your screening process into a strategic advantage for compliance.
Read on for key insights from our Director of Toxicology & Interdisciplinary Sciences, Colleen McLoughlin, and our Toxicology Specialist, Ziba Hosseini.
Why chemical list screening is important
Although more complicated than ever, chemical list screening remains a cornerstone of effective chemicals management. But it’s no longer just a ‘check the box’ exercise.
As regulations evolve, the lines between compliance and sustainability are blurring. Companies are now expected to have deeper knowledge of the chemicals in their products and processes, making list screening essential for compliance and beyond.
Strategic chemical list screening allows companies to comply with regulations, and also avoid chemicals of high concern, collaborate more effectively with suppliers (or collaborate more effectively as a supplier), and stay ahead of new rules.
Key challenges and solutions in chemical list screening
During the webinar, Enhesa experts address three key challenges that hinder companies’ list screening efforts:
- Identifying the most relevant lists to screen for your business needs
- Overcoming data gaps and avoiding incomplete information
- Taking meaningful action based on screening results to achieve business goals
Challenge #1 — Identifying the most relevant lists for your business needs
With hundreds of lists available, it’s not always clear to businesses which ones are relevant to your product types, business objectives, or sustainability goals. Taking the time to organize and prioritize lists is crucial for continued success – but it’s also one of the most common challenges companies face.
What you can do: Get familiar with list types to determine what’s relevant for you
At Enhesa Sustainable Chemistry, we’ve faced the same challenge. Like many businesses, we needed a way to make sense of the overwhelming number of chemical lists out there. That’s why we developed a practical approach to categorizing lists based on their intent and source – a method that has proven useful for helping clients screen more effectively.
By understanding the purpose behind each list type, you can better align your screening efforts with your compliance obligations, sustainability goals, and innovation strategies.
Here’s how we break it down:
- Regulatory lists (eg. EU REACH SVHC, California Proposition 65) — Created by governments or official bodies, these lists identify chemicals that are legally restricted or banned, helping you stay compliant and avoid legal penalties
- Restricted Substance Lists (RSLs) — Developed by brands or industry groups, RSLs specify substances to be limited or removed to meet brand commitments, increase supply chain transparency, and build consumer trust
- Authoritative and screening lists (eg. IARC Monographs, AOEC Asthmagens) — Issued by scientific or health organizations, these lists support labeling and hazard identification, even in the absence of current regulations.
- Watch lists (eg. EU Restrictions Roadmap) — These track substances under review or likely to be restricted in the future. They’re an important category for any business wanting to anticipate and get ahead of emerging restrictions and regulatory changes.
- Preferred lists (EPA Safer Chemical Ingredients List) — These highlight safer alternatives that businesses can adopt to accelerate their sustainability objectives, supporting sustainable innovation and the design of safer products.
- Informational or inventory lists (Canada Domestic Substances List) — These serve as reference catalogs detailing the legal status and presence of chemicals, which is useful for verification purposes.
- Group lists (PFAS, phthalates lists) — These organize chemicals by families of concern, allowing businesses to proactively restrict entire chemical groups, supporting a proactive approach to designing out potentially problematic chemicals.
Challenge #2 — Overcoming gaps in data, avoiding incomplete information
One of the biggest hurdles in chemical list screening is the lack of complete, consistent data. Many lists contain gaps—such as missing CAS numbers, broad chemical groupings, or inconsistent naming conventions—which can make it difficult to accurately match substances. This can lead to false positives and missed hits.
Why this matters: If critical information is missing from your screening results, you may overlook regulated substances or mistakenly flag safe ones—both of which can cost your business time, money, and credibility.
What you can do: Build a complete chemical inventory
To close these gaps, our experts recommend building an enriched and complete chemical inventory. This approach helps your business become more resilient to potentially unreliable lists. Here are best practices to strengthen your chemical inventory:
- Capture synonyms and alternative names — Record all known names for each substance, including IUPAC names, trade names, and regional variations. This allows you to identify matches even when lists use different naming conventions.
- Include multiple identifiers — Go beyond CAS numbers for substances. Add molecular formulas, SMILES strings, EC numbers, and CI numbers to create a more complete profile for each chemical you’re screening.
- Flag substances that belong to broader chemical groups — For example, PFAS, for example, is a large family of chemicals. Flagging substances that fall under such groups helps you to respond to group-level or structural-level restrictions, especially as regulatory authorities increasingly target chemical classes.
- Map each chemical to their specific use — Knowing where and how a chemical is used in your products is essential. For instance, a restriction might only apply to a chemical when used in fragrances. By mapping use cases, you can avoid unnecessary reformulations and focus your efforts where they matter most.
Where to find chemical information
To build a complete and more resilient chemical inventory, several publicly available databases can help you enrich your records with identifiers, synonyms, hazard classifications, and regulatory context:
- CompTox Chemicals Dashboard (US EPA) — Offers extensive chemical data, including identifiers, properties, and structural information—ideal for screening and hazard assessment.
- ECHA databases — Provide authoritative information on chemical group memberships, hazard classifications, and regulatory status within the EU.
- PubChem (NIH) — A widely used resource for general chemical information, including synonyms, molecular structures, and physical properties.
- IFRA & RIFM databases (International Fragrance Association and Research Institute for Fragrance Materials) — Valuable for understanding fragrance ingredient safety, usage restrictions, and industry standards.
- CosIng (EU Cosmetic Ingredients Database) — Essential for checking allowed uses, restrictions, and regulatory status of ingredients in cosmetic products.
In addition to these public resources, Enhesa Sustainable Chemistry’s Chemical Research (formerly ToxPlanet) offers a powerful solution for professionals seeking deeper insights. This tool searches across thousands of trusted databases simultaneously, helping you uncover critical information faster and more efficiently — supporting smarter, more confident decision-making.
Challenge #3 — Taking meaningful action based on screening results to achieve business goals
Another significant challenge companies face is how to turn the information from list screening results into meaningful action for the business. In our webinar, speakers explored key objectives companies commonly aim to support through chemical list screening:
- Maintaining regulatory compliance
- Advancing sustainable chemistry and innovation
- Aligning on acceptable chemicals both internally and externally
Business goal #1 — Maintaining regulatory compliance
Regulatory compliance remains the top priority for most organizations. However, the sheer volume and complexity of global chemical regulations can make it difficult to keep up.
To simplify this challenge, our experts recommend focusing on six core areas to cover in regulatory list screening:
- Chemical safety regulations – governing the safe use of substances
- Consumer product safety – protecting end users
- Labeling and hazard communication – ensuring accurate and compliant information
- Import/export regulations – managing cross-border compliance
- Occupational safety – protecting workers who handle chemicals
- Environmental regulations – covering waste, emissions, and disposal
By covering these areas in your target markets and list screening across all of them, you can identify which chemicals are banned or restricted, where regulations apply, and which additional steps may be necessary to remain compliant. This focused approach helps make regulatory compliance more manageable and less reactive.
Business goal #2 — Advancing sustainable chemistry and innovation
Many problematic substances aren’t yet restricted, but may be in the future. List screening helps you stay ahead by identifying these substances early and progressing safer chemistry objectives; and when list screening is integrated into your innovation process, you can make smarter, safer material choices from the start.
Screening against authoritative and watch lists helps flag substances of concern before they become regulatory liabilities or barriers to market access, giving you time to innovate and act.
Preferred lists can be used to identify safer alternatives, which can be integrated into product development.
Think of list screening as your sustainable chemistry starter kit—a proactive way to design out risk, build in resilience, and integrate sustainability into product development from the start.
In short, list screening forms a strategic foundation for sustainable innovation, helping organizations move beyond compliance toward a future where chemical safety, environmental responsibility, and performance are aligned from the start.
Business goal #3 — Aligning on acceptable chemicals both internally and externally
Another obstacle companies may face is how to align expectations for acceptable or unacceptable chemicals, both internally in the business and externally across the supply chain.
An effective tool to address this challenge is an internal Restricted Substances List (RSL). List screening is an essential stage when developing an internal RSL as it allows you to include comprehensive data from a wide range of sources, including the categories of lists previously identified when determining the most relevant lists for your business goals.
Sources could include
- Existing regulations and legislation
- NGO and industry association recommendations
- Watch lists for tracking chemicals under review
- Chemical hazard assessments and toxicological studies
- Chemicals with certain characteristics
- Problematic chemical groups
- Eco-label requirements
By aligning on your own set of substance criteria — whether to restrict or allow — you set clear, enforceable expectations. This enables consistent communication across sourcing, manufacturing, and compliance teams and encourages suppliers to proactively self-screen their formulations against your RSL.
Ultimately, a well-formed internal RSL can help you move from reactive compliance to proactive and responsible sustainable sourcing decisions for your business.
Leverage chemical list screening to achieve your business goals
Want to dive deeper into the insights shared in this article? Watch the full webinar, Strategic chemical list screening: Compliance and beyond, to hear directly from our experts and learn how to turn list screening into a powerful tool for compliance, sustainability, and innovation.