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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to aquatic invertebrates

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Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
publication
Title:
Ambient Water Quality Criteria Doc: 2,4-Dimethylphenol
Author:
US EPA
Year:
1978
Bibliographic source:
p.B-1 (1980) EPA 440/5-80-044

Materials and methods

Test guideline
Guideline:
other: no data
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2,4-xylenol
EC Number:
203-321-6
EC Name:
2,4-xylenol
Cas Number:
105-67-9
Molecular formula:
C8H10O
IUPAC Name:
2,4-dimethylphenol

Test organisms

Test organisms (species):
Daphnia magna

Study design

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

Results and discussion

Effect concentrations
Duration:
48 h
Dose descriptor:
LC50
Effect conc.:
2.12 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mobility

Applicant's summary and conclusion