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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
toxicity to aquatic plants other than algae
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: Unsuitable test system

Data source

Reference
Reference Type:
publication
Title:
The physiological activity of substitutedphenols. I. Relationships between chemical structure and physiological activity
Author:
Blackman GE, Parke MH, Garton G
Year:
1955
Bibliographic source:
Arch. Biochem. Biophysics, 54, 45-54

Materials and methods

Principles of method if other than guideline:
biological assay of activity (physiological effects)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
o-cresol
EC Number:
202-423-8
EC Name:
o-cresol
Cas Number:
95-48-7
Molecular formula:
C7H8O
IUPAC Name:
o-cresol
Details on test material:
purity not specified

Sampling and analysis

Analytical monitoring:
no

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
Lemna minor

Study design

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

Test conditions

Test temperature:
25+/-1°C
pH:
5.1

Results and discussion

Effect concentrations
Duration:
72 h
Dose descriptor:
other: physiological effects
Effect conc.:
746 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: phytotoxicity

Any other information on results incl. tables

RM-Freetext: Exposure period: 72 h Comments: 50% chlorosis

Applicant's summary and conclusion