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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
other: Publication
Adequacy of study:
weight of evidence
Study period:
2001
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data

Data source

Reference
Reference Type:
review article or handbook
Title:
Unnamed
Year:
2001
Report date:
2000

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
other: assumed similar to usual 72 hour exposure test but no details given in the publication
Deviations:
not specified
GLP compliance:
no

Test material

Constituent 1
Reference substance name:
Betaines, C12-Alkyldimethyl; Betaines with C14-Alkyldimethyl
Cas Number:
None
Molecular formula:
C16H33NO2C18H37NO2
IUPAC Name:
Betaines, C12-Alkyldimethyl; Betaines with C14-Alkyldimethyl
Test material form:
not specified

Test organisms

Test organisms (species):
Scenedesmus sp.

Study design

Total exposure duration:
72 h

Results and discussion

Effect concentrations
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
2.5 mg/L
Nominal / measured:
meas. (geom. mean)

Applicant's summary and conclusion