In the following, the online help texts for all data entry fields provided with any Endpoint summary record for this IUCLID section are listed. As to whether and to what extent endpoint summaries should be prepared, refer to the relevant guidance for the respective chemical programme, e.g., the Technical Guidance Document (TGD) on preparing the Chemical Safety Report under REACH in its most recent version.
For technical guidance on how to manage Endpoint summary records, see How to manage Endpoint summary records in sections 4 - 10, respectively. For details on data types, see What data types are available for input fields and how are they used?.
Enter a full short description of the most relevant endpoint data. This includes in principle the summary information that is compiled e.g. in the OECD Full SIDS Summary format or other endpoint summary formats. Provide only the most relevant details, which could be, depending on the cases, the test guideline used, test organism and exposure duration. Normally no reliability score needs to be indicated as it can be assumed that the studies identified are valid (reliability score 1 or 2). If this is not the case (for instance if the reliability of a published study cannot be assigned or if several less valid studies are used for a weight of evidence analysis), the reliability indicators should be specified.
Also several key studies can be referenced as applicable. However, the characterisation of the endpoint data should be kept as concise as possible. Examples of what could be entered here are as follows:
- Melting point: 54.6-55.8 °C at 1,013 hPa
- Water solubility: completely miscible
- pH: 6.9 (80 mg/l water) at 20°C (OECD TG105)
- Oxidation reduction potential: no data available
- Phototransformation in air: T1/2 = 9.32 x 10-2 yr (sensitizer: OH radical) (AOP Win v 1.86)
- Biodegradation in water: screening tests: Not readily biodegradable: 0 - 8% (BOD) in 28 days, 0 - 1% (HPLC) in 28 days (OECD TG 301C)
- Short-term toxicity to fish:
LC50 (96h) < 100 mg/l for Pimephales promelas (OECD TG 203)
LC50 (48h) = 3.2 mg/l for Oryzias latipes (OECD TG 203)
- Acute toxicity:
Dermal: LD50: > 2,000 mg/kg for rat (limit test)
- Genetic toxicity:
In vitro:
Gene mutation (Bacterial reverse mutation assay / Ames test): S. typhimurium TA 100: positive with and without metabolic activation; TA 1535: positive without metabolic activation (equivalent to OECD TG 471)
In this rich text field, describe the assessment you have made for the given endpoint. Provide the rationale for the choice of the key study(ies) and the choice of the key parameter that, according to your judgement, characterise the endpoint. This includes a discussion of the key information identified and in some instances of studies which are considered to be unreliable, but give critical results. A discussion as to why they were discarded in favour of other studies should then be included. Vice versa, a weight of evidence analysis based on less reliable data or use of published data, the reliability of which cannot be judged because of limited reporting, should be justified.
If several studies were identified to be relevant for the assessment, discuss possible reasons for differing results if any, e.g. differences in purity / impurities of the test substance used, differences in the methods and test conditions, etc.