Registry of Toxic Effects of Chemical Substances (RETCS)

Registry of Toxic Effects of Chemical Substances (RTECS) previously maintained by NIOSH and now licensed through MDL Information Services, Inc. provides toxicological information with citations on over 150,000 chemical substances. These detailed profiles include toxicological data and reviews; international workplace exposure limits; references to US standards and regulations; analytical methods; and exposure and hazard survey data. The data is compiled into substance records for ease-of-use, and updated data is fully integrated. Original coded NIOSH data is replaced by full text descriptions.

more than 400,000 chemical names and synonyms, and 130,000 unique CAS numbers

specific toxicity data such as LD50, LC50, tumorigenic and reproductive effects

carcinogenicity status by OSHA; IARC; NTP; ACGIH; EPA Genetox Program.

Subject Coverage:

Identification of Substance

Toxicity Data

Irritation Data

Federal Standards and Regulations

EPA, NIOSH, NTP, and OSHA Activities

Mutation Data

Tumorigenic Effects

Reproductive Effects

Toxicology Reviews

Other Multiple Dose Data