Dangerous Goods Classifier
Every UN number from UN 0001 to UN 3600. 2787 entries, 51 hazard classes. Search by UN number, chemical name (English or 中文), or CAS.
Sources: IMDG Code Amendment 42-24 (in force 1 January 2026), UN Recommendations on the Transport of Dangerous Goods (23rd revised edition), and the US PHMSA Hazardous Materials Table at 49 CFR 172.101 (eCFR, public domain). Chinese names from GB 12268-2012 and Wikipedia zh-langlinks. The IMDG Code Vol 2 Ch 3.2 is the binding list for booking. Use this tool to look up. Use the Code itself to ship.
2787 entries indexed. Type a UN number, chemical name, or CAS to begin.
No matches. Try a 4-digit UN number, a chemical name, or a CAS number with hyphens (e.g. 67-56-1).
How to use this tool
Look up here. Book against the IMDG Code Vol 2 Ch 3.2. For Class 1 explosives, Class 7 radioactive, organic peroxides, or any dual-use chemical, get a classification body to sign off (BV, SGS, TÜV, Intertek).
Related glossary entries: IMDG, UN Number, Packing Group, DG Declaration, Segregation Table, Marine Pollutant.