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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
other: QSAR report
Title:
Unnamed
Year:
2022

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: QSAR prediction model
Deviations:
no
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
tributyl(ethyl)phosphonium 4-methylbenzenesulfonate
Cas Number:
119520-10-4
Molecular formula:
C21H39O3PS
IUPAC Name:
tributyl(ethyl)phosphonium 4-methylbenzenesulfonate

Test organisms

Test organisms (species):
Daphnia magna

Study design

Total exposure duration:
48 h

Results and discussion

Effect concentrations
Key result
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
36.1 mg/L
Remarks on result:
not determinable because of methodological limitations

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
Based on RB-QSAR estimation, the Effect concentration of Tributyl (ethyl) phosphonium ptoluenesulfonate( 1:1) is 36.1 mg/L
Executive summary:

Predicted endpoint: EC50; Acute; Daphnia magna; 48 h; No guideline specified
Predicted value: 36.1 (from 0.297 to 4.39E+03)
Unit/scale: mg/L
WS warning: Water Solubility (fragments) = 2.26E-05 mg/L
Data gap filling method: Read-across analysis
Summary: manually editable field
Not provided by the user