Denehurst Chemical Safety Ltd

IUCLID 6 support and IUCLID training

IUCLID guidance - Installation and use


NOTE : IUCLID 6 has been released on time 29 April 2016

IUCLID 6 - must be used from June 2016

IUCLID is downloaded from the IUCLID web-pages It is necessary to set up a user account and remember your log-in details to download updates.  ECHA will inform you of new updates and add-ons ('tools').


Download is quick and easy and installation is relatively pain free if using the installation tool.  Thankfully, there is no need to download supporting software like PostgreSQL and Java. 


A simple installation guide for 'stand-alone' is available as a link above (in red) or on request; contact  The distributed version for networking is more complex and support is needed from IT experts.


Guidance in completing the revised sections is also available.


IUCLID is actually a rather good tool once the user is used to it.  Do not give up in the first day.


When you are familiar with IUCLID, completing the dossier Sections 1 and 3 as part of a joint submission takes 2 - 3 hours, once key information (such as analysis and use descriptors) are gathered.  It is not difficult.


Updated May 2016






Installation guidance and advisory notes on the new sections can be downloaded as pdf documents 


IUCLID 6 web-site

Installation guide   

(note that this is an early version and please contact Denehurst if more help is needed) 


(Opens new windows)


IUCLID 6 training

Denehurst offers training in IUCLID 6 and the creation of dossiers for submission through REACH IT.


The use of IUCLID is actually not difficult once the basics are understood and the main objective of training is to show that it can be handled easily and should not be frightening. Secondly, there are many places where IUCLID expects an entry and failure to complete may lead to technical completeness failure; in these places, it is necessary to persuade the computer checking your submission that you have done it correctly even when logic suggests that there is no point adding information.


The second main objective for this type of work is help registrants keep costs down with consulting companies - to be fair to the consultants, they often need a lot of time to extract the correct information from the registrants, even though completing the registration dossier is easy. If someone is using a consultant, it will help everyone if the correct information is provided first time.


One day training is sufficient for use of IUCLID and practical registration support, but different content can be provided depending on whether it was just for secondary registrants (part of joint submissions) or for those needing to complete classification sections and data input (lead registrants). Data input on IUCLID is easy, but interpretation of the science is not something that can be taught in one day.


Information on the data endpoints can be found here ( Guide to Laboratory Testing )


IUCLID 6 Tools

IUCLID 6 comes with tools to help the user prepare their REACH dossier and pass the completeness checks. Not all of the tools are needed and indeed there is a conflict between the CHESAR and CSR tools. 

IUCLID tools are summarised below:



Denehurst can offer science and regulatory support on IUCLID 5 relating to data input and training. IT support is not given beyond the basics.

Although there is a completeness check that ensure all data end-points have been considered, it is not necessary to fill in every data field as some had feared when it was first released. There are a few myths and fallacies with IUCLID - try it yourself and you will find it as easy as an on-line tax return.


For more information contact us