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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Though only limited information are available the tes t is valid as the data sourde is regarded reliable.

Data source

Reference
Reference Type:
publication
Title:
Biodegradation and Bioaccumulation Data of Existing Chemicals Based on the CSCL Japan
Author:
MITI Japan
Year:
1995
Bibliographic source:
National Institute of Technology and Evaluation, Japan, available online

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 201 (Alga, Growth Inhibition Test)

Test material

Constituent 1
Chemical structure
Reference substance name:
Dibutyl phthalate
EC Number:
201-557-4
EC Name:
Dibutyl phthalate
Cas Number:
84-74-2
Molecular formula:
C16H22O4
IUPAC Name:
dibutyl phthalate

Sampling and analysis

Analytical monitoring:
not specified

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata, Selenastrum capricornutum)

Study design

Test type:
static
Water media type:
freshwater
Total exposure duration:
72 h

Test conditions

Reference substance (positive control):
not specified

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
2.7 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
0.3 mg/L
Basis for effect:
growth rate

Applicant's summary and conclusion