UN Number Search

UN Number

CAS Number

Proper Shipping Name

Data Sources

JT/T 617

Dangerous Goods Road Transport Rules

IATA DGR

Dangerous Goods Regulations

Catalogue of Dangerous Goods for Air Transport

IMDG Code

International Maritime Dangerous Goods Code

How to Use UN Number Search

Search for Chemical Substances

Enter the 4-digit UN number, Chinese or English proper shipping name, or CAS number in the search bar, then select the substance you need.

United Nations (UN) numbers are four-digit identifiers assigned to hazardous materials for transport. They are used worldwide to identify dangerous goods during international commerce and transportation.

Get Feedback Information

Click "Search" to view transport information for the dangerous goods or hazardous chemicals, including hazard class, proper shipping name, transport labels, packing group, and special provisions under IMDG, IATA, and ADR.

Disclaimer

CIRS aims to keep the content of this site accurate and up to date. However, CIRS makes no warranties or representations regarding the quality, accuracy, completeness or reliability of information on the site.

In no event shall CIRS assume or have any responsibility or liability for any information on this site or for any claims, damages or losses resulting from their use.

CIRS reserves the right, at our discretion, to change, modify, add to, or remove portions of information on this site at any time without notice.

CAS and CAS Registry Number are registered trademarks of the American Chemical Society. Any reference to such identifiers is made solely for the purpose of identifying chemical substances. ChemRadar is an independent platform and is not affiliated with, sponsored by, endorsed by, or an authorized partner of CAS or ACS. Based on CIRS's current review, the identifiers displayed on this platform were not obtained directly from CAS REGISTRY or any CAS subscription product or service. They were collected from governmental regulatory publications and other independent third-party sources. Users should independently verify the information before relying on it.