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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study with acceptable restrictions (non-GLP)

Data source

Reference
Reference Type:
secondary source
Title:
Unnamed
Year:
1992
Report date:
1992

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 201 (Alga, Growth Inhibition Test)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Lactonitrile
EC Number:
201-163-2
EC Name:
Lactonitrile
Cas Number:
78-97-7
Molecular formula:
C3H5NO
IUPAC Name:
2-hydroxypropanenitrile
Details on test material:
2-Hydroxypropanenitrile
Purity: 92.3 %

Sampling and analysis

Analytical monitoring:
no

Test organisms

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

Study design

Limit test:
no

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
0.14 mg/L
Basis for effect:
biomass
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
<= 0.048 mg/L
Basis for effect:
biomass

Any other information on results incl. tables

RS-Freetext:
NOEC =< 0.048 mg/L (p < 0.05)

Applicant's summary and conclusion