Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification
Justification for type of information:
1. SOFTWARE
ECOSAR Profile

2. MODEL (incl. version number)
ECOSAR Version 1.11

3. SMILES OR OTHER IDENTIFIERS USED AS INPUT FOR THE MODEL
CCN1CCN(C(=O)NC(C(=O)(O))c2ccccc2)C(=O)C1(=O)

4. SCIENTIFIC VALIDITY OF THE (Q)SAR MODEL
- Defined endpoint: Daphnid

5. APPLICABILITY DOMAIN
- Structural and mechanistic domains: Carbonyl Ureas -acid

Data source

Reference
Reference Type:
other: QSAR
Title:
EPI Suite Version 4.11_ECOSAR v1.11 Class-specific Estimations
Author:
US EPA
Year:
2014
Bibliographic source:
http://epa.gov/oppt/exposure/pubs/episuite.htm

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: REACH Guidance on QSARs R.6
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
(R)-[[(4-ethyl-2,3-dioxopiperazin-1-yl)carbonyl]amino]phenylacetic acid
EC Number:
264-133-8
EC Name:
(R)-[[(4-ethyl-2,3-dioxopiperazin-1-yl)carbonyl]amino]phenylacetic acid
Cas Number:
63422-71-9
Molecular formula:
C15H17N3O5
IUPAC Name:
(2R)-2-[(4-ethyl-2,3-dioxopiperazine-1-carbonyl)amino]-2-phenylacetic acid

Results and discussion

Effect concentrations
Key result
Duration:
48 h
Dose descriptor:
LC50
Effect conc.:
1 942.679 mg/L
Nominal / measured:
estimated
Conc. based on:
not specified
Basis for effect:
mortality
Remarks on result:
not determinable because of methodological limitations

Applicant's summary and conclusion

Conclusions:
LC50 (48h) of 1942.679 mg/l is predicted.