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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The study has been presented to ECHA in the framework of a NONS notification. The document is now public because presented more than 12 years ago.

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Year:
1994

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Based on OECD 202, part I and EC method C2.
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
401-310-2
EC Name:
-
Cas Number:
93912-64-2
Molecular formula:
Hill formula: C37H23N10O22S7Cl.6Na CAS formula: C37H23N10O22S7ClNa6
IUPAC Name:
Hexasodium 2-[8-amino-7-[[5-[[4-chloro-6-[[3-[[2-(sulfato)ethyl]sulfonyl]phenyl]amino]-1,3,5-triazin-2-yl] amino]-2 sulfonatophenyl]azo]-1-hydroxy-3,6-disulfonato-2-naphthalenyl]azo]-naphthalene-1,5-disulfonate

Test organisms

Test organisms (species):
Daphnia pulex

Study design

Water media type:
freshwater
Total exposure duration:
24 h
Post exposure observation period:
At 24 hours.

Test conditions

Hardness:
CA55 mg/CaCO3/l

Results and discussion

Effect concentrationsopen allclose all
Duration:
24 h
Dose descriptor:
EC50
Effect conc.:
> 1 000 mg/L
Duration:
24 h
Dose descriptor:
NOEC
Effect conc.:
> 1 000 mg/L

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
Under the conditions of the tested substance did not induce acute immobilisation of Daphnia magna at an analytically confirmed nominal concentration of 100 mg/l after 24 hours of exposure (NOEC).
The 24h-EC50 for immobility was beyond the range tested, i.e. exceeded an analytically confirmed nominal concentration of 100 mg/l.