If you work in chemicals compliance, you have probably spent hours on the ECHA website, searching substances one by one against the Candidate List, Annex XIV, Annex XVII, CLP tables, and REACH registration databases. For a handful of substances, this is tedious but manageable. For an inventory of hundreds or thousands, it is unsustainable.
This article reviews the available options for screening chemical substances against ECHA regulatory databases in 2026, from manual methods to dedicated batch screening tools, and explains why the Obsidian Substance Validator is the most practical solution for most compliance teams.
Why do you need an ECHA substance checking tool?
The European Chemicals Agency maintains more than half a dozen regulatory databases that chemicals companies must monitor. Each database serves a different regulatory mechanism and carries distinct compliance obligations.
A single substance in your product inventory could be:
- Listed as an SVHC on the Candidate List, triggering notification and communication obligations
- Included in Annex XIV, requiring authorisation for continued use after its sunset date
- Restricted under Annex XVII, with specific conditions on manufacturing, placing on the market, or use
- Classified under CLP with harmonised hazard statements that must appear on labels and safety data sheets
- Subject to a complete ban under the POPs Regulation
- Under active regulatory scrutiny through an ongoing ECHA process such as SVHC identification, restriction proposal, or substance evaluation
Checking all of these dimensions manually for each substance in a large inventory is where compliance teams lose days of productive time. A proper ECHA substance checking tool eliminates this bottleneck.
Current options for ECHA substance checks
Here is how compliance teams currently approach ECHA substance validation, ranked from least to most efficient.
Option 1: Manual ECHA website searches
The ECHA website (echa.europa.eu) provides free access to all regulatory databases. You can search by substance name, CAS number, or EC number and navigate to the relevant regulatory information pages.
Pros: Free, official source, complete data.
Cons: One substance at a time, no batch capability, results scattered across multiple pages, no consolidated risk view, no export functionality, and no alerts when a substance's regulatory status changes. Practical only for occasional single-substance lookups.
Option 2: Downloaded ECHA Excel files
ECHA publishes downloadable Excel files for some of its databases (Candidate List, Annex XIV, Annex XVII). You can download these and use VLOOKUP or similar Excel functions to cross-reference your inventory.
Pros: Free, supports batch comparison, familiar Excel workflow.
Cons: You must manually download and maintain multiple Excel files, keep them updated after each ECHA list revision, and build your own VLOOKUP formulas across 6+ separate worksheets. There is no unified risk scoring, no regulatory activity tracking, and no CAS validation. Error-prone for large inventories.
Option 3: Enterprise compliance platforms
Full-scale regulatory compliance platforms (Sphera Product Stewardship, SAP EHS, Enhesa) include substance screening as part of broader product compliance suites. These platforms provide deep substance management capabilities integrated with supply chain, SDS authoring, and regulatory tracking.
Pros: Comprehensive, integrated with enterprise systems, substance management lifecycle.
Cons: Expensive (enterprise pricing, often six figures annually), complex implementation (multi-month onboarding), requires dedicated administration, overkill for teams that need fast regulatory checks without a full PLM overhaul. Most require sales calls and contract commitments before you can evaluate the tool.
Option 4: Obsidian Substance Validator (recommended)
The Obsidian Substance Validator is a free, browser-based batch screening tool that checks your substance lists against the full range of ECHA regulatory databases in a single pass. No account setup, no software installation, no contract.
Pros: Free, instant results, 8+ ECHA screening dimensions, batch capability (paste or upload), automatic column detection, CAS validation, risk scoring, forward-looking regulatory activity tracking, session sharing. Available immediately in your browser.
Cons: Currently focused on ECHA/EU regulatory databases (US TSCA, EPA, and other jurisdictions planned for future releases).
What makes the Obsidian Substance Validator the best option?
The gap in the market is clear: ECHA's own tools do not support batch checks, Excel downloads require manual maintenance, and enterprise platforms are designed for organizations ready to commit to six-figure contracts. The Obsidian Substance Validator sits in the space between, providing enterprise-level screening depth with zero setup friction.
Screening depth: 8+ ECHA regulatory dimensions
Each substance in your uploaded list is screened against:
| ECHA Database | What it checks | Why it matters |
|---|---|---|
| SVHC Candidate List | Substances of Very High Concern identification | Triggers notification and communication obligations under REACH Articles 7 and 33 |
| Annex XIV (Authorisation) | Substances requiring authorisation for use | Use after sunset date requires ECHA authorisation or phase-out |
| Annex XVII (Restrictions) | Conditions or bans on specific uses | Non-compliance with restriction conditions is a legal violation |
| CLP Harmonised Classification | Legally binding hazard classifications | Determines labelling, packaging, and SDS requirements |
| POPs Regulation | Persistent Organic Pollutants prohibitions | Manufacturing and use generally prohibited |
| REACH Registrations | Registration status and tonnage bands | Confirms legal basis for placing substance on EU market |
| EU Drinking Water Directive | Positive list for materials in contact with drinking water | Relevant for water contact materials compliance |
| Regulatory Activity | Ongoing ECHA processes (SVHC proposals, restriction intentions, substance evaluations, CLH proposals) | Early warning for substances that may face future regulatory action |
This breadth of coverage in a single screening pass is what differentiates the tool from simpler lookup solutions that check only one or two lists.
Zero-friction workflow
The tool is designed to match how compliance teams actually work:
- Paste or upload: Copy substance data from Excel, upload a CSV or XLSX file, or use the built-in sample dataset to see the tool in action
- Automatic column detection: The tool identifies substance name, CAS number, and EC number columns automatically. You can adjust mappings if needed
- CAS checksum validation: Before screening, invalid CAS numbers are flagged so you can correct your data
- Instant results: Screening runs in seconds, returning per-substance results with risk scores and regulatory details
There is no account creation, no API key, no onboarding call, and no trial period. You open the page, paste your data, and get results.
Risk scoring for prioritization
Each substance receives a weighted risk score from 0 to 100, calculated based on the severity and number of regulatory hits. Substances are categorized as:
- Critical: Substances on the Authorisation List, POPs list, or with multiple severe regulatory flags. These require immediate compliance action
- Warning: Substances on the Candidate List, subject to restrictions, or under active regulatory scrutiny. These need monitoring and planning
- Clear: Substances with no current ECHA regulatory flags. Standard compliance procedures apply
This scoring allows compliance managers to focus their limited time on the substances that present the highest regulatory risk, rather than working through results alphabetically.
Forward-looking regulatory activity
Unlike static list checks, the Obsidian Substance Validator also screens against ECHA's pipeline of regulatory activity. This includes substances that are under evaluation, proposed for SVHC identification, subject to pending restriction intentions, or going through the Community rolling action plan (CoRAP).
This forward-looking capability gives compliance teams advance warning before a substance appears on a final regulatory list, enabling proactive planning rather than reactive scrambling.
Who should use the Obsidian Substance Validator?
The tool is designed for several distinct user profiles:
- Regulatory affairs professionals managing substance inventories for REACH compliance
- EHS managers validating incoming materials against hazard classification databases
- Product stewardship teams screening formulations during product development
- Procurement teams verifying supplier substance declarations
- Consultants and auditors performing due diligence on client substance portfolios
- SMEs that need ECHA screening capability without enterprise software budgets
How the Obsidian Substance Validator compares to alternatives
| Feature | ECHA Website | Excel Downloads | Enterprise Platforms | Obsidian Validator |
|---|---|---|---|---|
| Batch screening | No | Manual VLOOKUPs | Yes | Yes |
| Number of lists checked | 1 at a time | Depends on files downloaded | Varies | 8+ dimensions |
| Risk scoring | No | No | Some | Yes (0-100) |
| Regulatory activity tracking | Separate pages | No | Some | Yes |
| CAS validation | No | No | Yes | Yes |
| Setup time | None | Hours (formula setup) | Weeks to months | None |
| Cost | Free | Free (manual effort) | $$$$ | Free |
Getting started with ECHA substance checks
If you are currently checking substances manually on the ECHA website or maintaining your own Excel-based cross-reference system, switching to the Obsidian Substance Validator takes less than a minute:
- Open the Substance Validator in your browser
- Paste your substance list from Excel or upload a CSV/XLSX file
- Confirm the column mapping (usually automatic)
- Click screen and review your results
For teams that also need real-time monitoring of ECHA publications, restriction proposals, and regulatory pipeline activity, Obsidian Regulatory Intelligence monitors 200+ official government sources with dedicated chemicals and REACH coverage. Combining batch substance validation with continuous regulatory monitoring gives your compliance team complete visibility into both your current substance portfolio and the regulatory landscape ahead.