4chems.com - simple, fast, no headaches.
4chems.com is a innovative Solution as a Service to run your chemical compliance tools. Always Compliant, always up-to-date and lightning-fast. Ready for new ECHA integrations and regulatory changes — without lifting a finger. GDPR-compliant and EU-based.

The Fastest Way to Work with IUCLID, Chesar and more — No Headaches.
Run your chemical compliance tools securely in the cloud. Always up-to-date, lightning-fast, and ready for your team — wherever they are.
- Zero Installation - start working instantly, no server setup, no software updates, no downtime.
- Always Compliant - Preconfigured for EU REACH, CLP, and OECD standards — reduce compliance risks.
- High Performance - Optimized cloud hosting for fast data processing and report generation.
- Secure by Design - GDPR-compliant, EU-based hosting with encryption and controlled access.
- Fully Integrated - IUCLID, Chesar, IIP, and QSAR work seamlessly together.
Frequently asked questions
Have a different question and can't find the answer you're looking for? Reach out to our support team by sending us an email.
- Is 4chems.com GDPR compliant?
- Yes — the entire 4chems.com platform is fully GDPR compliant. We implement strict data protection, access control, and transparency measures in accordance with the EU General Data Protection Regulation (Regulation (EU) 2016/679).
- What cloud provider or data center is being used?
- 4chems.com operates on a secure, EU-based cloud infrastructure designed for regulatory and scientific data workloads. Our Solution is provided through ISO 27001–certified European data centers with redundant availability zones to ensure high availbility and data resilience. To avoid compliance risks we do not use Hyperscalers like AWS, Microsoft Azure or Google Cloud.
- What version of CHESAR are you running and how often is it updated?
- At 4chems.com, we run the latest officially released version of CHESAR, fully synchronized with the ECHA publication cycle. Our CHESAR environment is updated within a few days after each ECHA release, ensuring full compatibility with the current IUCLID data format and the most recent REACH Chemical Safety Assessment (CSA) requirements.
- Who owns the data hosted in your solution?
- At 4chems.com, our customers always retain full ownership of their data. We act solely as a data processor under GDPR, while the customer remains the data controller. All information including IUCLID datasets, CHESAR assessments and QSAR models, belongs entirely to the customer. 4chems.com does not access, share, or use customer data for any purpose other than providing the contracted service. Upon request or contract termination, customers can export or permanently delete all their data. Backups and replicas are securely maintained only for availability and integrity, in compliance with GDPR and data retention policies.
- What version of IUCLID are you running and how often is it updated?
- At 4chems.com, we always maintain the latest official release of IUCLID, aligned with the European Chemicals Agency (ECHA) schedule. Our IUCLID environment is currently running the latest production version published by ECHA (updated immediately after each official release). We typically update within a few days of every ECHA release, ensuring full compatibility with REACH, CLP, and OECD formats.
- Who handles system administration?
- 4chems.com manages all platform-level administration, ensuring the environment remains secure, up-to-date, and compliant. Customers do not have access to the underlying infrastructure.
- Can I migrate my existing self-hosted IUCLID to 4chems.com?
- Yes — we provide full migration support for self-hosted IUCLID installations. Our team handles the complete migration process including data export from your on-premise instance, validation, and import into your managed cloud environment. We ensure zero data loss and minimal downtime. Whether you’re running IUCLID on a local server or an internal network, we can migrate your datasets, user configurations, and submission history seamlessly.
- How does 4chems.com compare to ECHA's own IUCLID Cloud?
- While ECHA provides a basic IUCLID Cloud service, 4chems.com offers a fully managed, enterprise-grade hosting solution with key advantages: dedicated environments with guaranteed performance (no shared resources), full CHESAR and QSAR Toolbox integration in the same platform, professional support with fast response times, automated backups and disaster recovery, and ISO 27001-certified EU data centers. We’re ideal for organizations that need reliability, speed, and a complete regulatory toolkit — not just IUCLID alone.
- Do I need to install anything to use IUCLID, CHESAR, or QSAR Toolbox?
- No — all tools are accessible directly through your web browser. There is no software to install, no Java dependencies to manage, and no server infrastructure to maintain. Simply log in and start working. This eliminates common pain points like version conflicts, update management, and local hardware requirements.
- Can I use IUCLID, CHESAR, and QSAR Toolbox together on 4chems.com?
- Yes — one of the key advantages of 4chems.com is that IUCLID, CHESAR, QSAR Toolbox, and IIP are all available in a single integrated environment. Data flows seamlessly between tools: substance data from IUCLID is directly available in CHESAR for chemical safety assessments, and QSAR predictions can complement your dossier data. No manual file transfers or compatibility issues between tool versions.

Ready to run IUCLID & Chesar in the cloud?
Start in minutes — no installs, no maintenance, always up-to-date. Hosted in EU data centers with full GDPR compliance, backups, and SLA.
What Users are saying about 4chems.com
We could tell you how great 4chems.com is… but our customers do it better.