Reference data from EU CLP Annex VI and published regulations — verify against your supplier's SDS before use.
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Storage compatibility

Chemical storage compatibility matrix

See what can — and can't — be stored together, by GHS hazard class, chemical reactivity, and ADR transport class.

Browse by hazard class →

Pick a substance to see its storage verdict

You'll see what to never store with, what to keep separate, and its ADR transport class.

How this tool works

GHS hazard class

Each substance is sorted into a storage class from its GHS hazard codes, so incompatible classes can be flagged.

Chemical reactivity

Reactivity data identifies pairs that can react dangerously when a spill or leak brings them into contact.

ADR transport

Transport data adds the UN number, ADR class, and packing group for moving the substance by road.

This tool is a reference aid, not a substitute for a substance's Safety Data Sheet or professional judgment. Always verify storage and handling against SDS sections 7 and 10, and follow local regulations.

Data sources: GHS/CLP hazard classifications, CAMEO Chemicals (NOAA), ADR 2025 (UNECE).

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