CNESSTSanté et sécurité du travailEnglishPreventionRépertoire toxicologiqueSubstance search instructions
The Répertoire toxicologique (toxicological index) search engine can be used to identify substances for which a data sheet has been prepared. Two types of search are possible: simple search (Recherche simple) and advanced search (Recherche avancée). You can toggle between the two search modes by clicking on the name of the search type, located at the top of the search panel.
Simple search lets you query our substances databank by CAS registry number, UN number or a part of the substance’s name.
If a simple search yields too many results, we suggest you try using the advanced search mode.
To conduct a search in our chemical and biological substances databank, we suggest the following three approaches:
The search engine is not case sensitive and automatically looks for all variants.
Also note that the search panel is specific to the substances databank only. To broaden your search to all information provided on this website, use the website search line (Rechercher sur le site) at the top of the page.
The left column of the search panel has drop-down lists for the first three boxes, allowing you to designate the criterion or criteria to be used in the search. The last line is for performing a query by chemical family (Famille chimique).
The expression you are looking for can be entered in the text input field to the right of the search criterion. To perform a search by chemical family, select a value in the drop-down list.
Two special characters are available as wild cards within the search engine:
If you want to search for a name containing an actual % value, you need to enter the % character in square brackets, e.g. hydrochloric acid 37[%].
Searching with the exact name (Nom exact) is a more precise approach than searching by approximate name (Nom approximatif). However, if an exact name search yields no hits or unsatisfactory results, it may be useful to start over using the approximate name approach described below.
It is generally preferable not to use accents when an approximate search is being made; the search engine will make the conversion automatically.
A search by approximate name (Nom approximatif) will yield a list of all substances with names that contain the characters as entered, regardless of where they are found in the expression.
For example, Toluene in a search by approximate name will yield the following results :
Four different formats are available for displaying information :