- WorldCat: 46977255
RTECS® contains critical toxicological information with citations to over 150,000 chemical substances from more than 2,500 sources, including: international journals, textbooks,technical reports, scientific proceedings and compendia. CCOHS has also added options to search for 400,000+ chemical names and synonyms plus the 120,000+ unique CAS numbers found in RTECS®.
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