Chemical Safety Data.
Free. Searchable. Sourced from PubChem.

Look up physical properties, hazard classifications, and regulatory status for industrial chemicals. No login required.

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8,000+
Chemical Profiles
PubChem
NIH Sourced
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Regulatory Compliance by State

Compare reporting thresholds, community right-to-know laws, and state-specific restrictions beyond federal TSCA and EPA TRI requirements.

Select a state to view its chemical regulatory framework, including:

  • EPA TRI reporting thresholds vs. state-tiered reporting
  • California Proposition 65 listed chemicals
  • Massachusetts TURA (Toxics Use Reduction Act)
  • New Jersey RTK (Right to Know) substance lists
  • State-specific air toxics and water quality standards
View State Comparison Table →
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Frequently Asked Questions

Where does this data come from?

All chemical property data is sourced from PubChem (National Library of Medicine / NIH) via the PUG-REST API. Regulatory data references EPA TRI, OSHA PELs, and state-level programs. No proprietary databases are used.

Can I use this for SDS authoring?

This site is a reference tool, not an SDS authoring platform. Always verify GHS classifications against the official supplier SDS and applicable jurisdiction regulations before shipping or handling.

How often is the data updated?

PubChem data is refreshed daily. EPA TRI bulk data is updated annually. Each chemical profile page displays the last-update timestamp for transparency.

Is there an API?

We recommend using the primary sources directly: PubChem PUG-REST for chemical data and EPA Envirofacts for regulatory data. Both are free, keyless, and public domain.