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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Report date:
2000

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
2,4-diazatetracyclo[12.4.0.0²,⁶.0⁷,¹²]octadeca-1(18),3,7,9,11,14,16-heptaen-3-amine
EC Number:
616-785-3
Cas Number:
80012-43-7
Molecular formula:
C16 H15 N3
IUPAC Name:
2,4-diazatetracyclo[12.4.0.0²,⁶.0⁷,¹²]octadeca-1(18),3,7,9,11,14,16-heptaen-3-amine

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 concentrationsopen allclose all
Duration:
24 h
Dose descriptor:
EC50
Effect conc.:
> 10 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
> 5.7 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality

Applicant's summary and conclusion

Conclusions:
The 24-hour EC 50 and EC 100 of the test item were higher than 10 mg test item/L. The 24-hour EC 0 was at least 10 mg test itemIL.
The 48-hour EC 50 was calculated to be 5.7 mg test itemIL with 95 % confidenee limits from 4.7 to 7.0 mgiL. The 48-hour EC 0 and the
48-hour NOEC (highest eoncentration tested without toxic effects after 48 hours) of WAL 801 BS were 2.1 mg test itemIL, since no significant
immobilization rate and no other signs of intoxication were observed at the test animals up to and including this test concentration.
The 48-hour EC 100 amounted to 10 mg test item/L.