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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to aquatic algae and cyanobacteria

Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
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
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

Results and discussion

Effect concentrations
Key result
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
26.3 mg/L
Basis for effect:
growth rate
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 26.3 mg/L
Executive summary:

Predicted endpoint: EC50; Growth Rate; Pseudokirchneriella subcapitata; 72 h; No guideline specified
Predicted value: 26.3 (from 0.0598 to 1.16E+04)
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