Registration Dossier
Registration Dossier
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EC number: 208-488-9 | CAS number: 530-62-1
Short-term toxicity to aquatic invertebrates
Administrative data
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- other: Hydrolysis product
- Adequacy of study:
- key study
- Study period:
- 1988
- Reliability:
- 2 (reliable with restrictions)
- Justification for type of information:
- Substance 530-62-1 hydrolyses
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 988
- Report date:
- 1988
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Directive 79/831EEC, AnnexV,Part C
- GLP compliance:
- no
Test material
- Reference substance name:
- Imidazole
- EC Number:
- 206-019-2
- EC Name:
- Imidazole
- Cas Number:
- 288-32-4
- Molecular formula:
- C3H4N2
- IUPAC Name:
- 1H-imidazole
- Details on test material:
- 99,8%
Constituent 1
Test organisms
- Test organisms (species):
- Daphnia magna
Study design
- Test type:
- static
- Water media type:
- not specified
Results and discussion
Effect concentrations
- Key result
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- 341.5 mg/L
- Nominal / measured:
- not specified
Any other information on results incl. tables
-
Number of mobile test animals after exposure (48 h) to
various test concentrations:
concentration (mg/L) mobile daphnids
31.25 20
62.5 20
125.0 20
250.0 20
500.0 0
control 20
- Effect values after 48 h:
EC50 = 341.51 mg/L
95 % confidence limits: 319.08-365.51 mg/L
- Effect values after 24 h:
EC0 =500
mg/L
EC50 >500 mg/L
95 % confidence limits: no data
EC100 = >500 mg/L
- pH at start: concentration (mg/L) pH
31.25 8.32
62.5 8.44
125.0 8.59
250.0 8.75
500.0 8.75
control 8.28
- pH after 48 h: concentration (mg/L)pH
31.25 8.14
62.5 8.12
125.0 8.15
250.0 8.23
500.0 8.36
control 8.19
- Oxygen (O2, mg/L) at start:
concentration (mg/L) oxygen
31.25 9.02
62.5 9.02
125.0 9.03
250.0 8.98
500.0 8.90
control 8.99
- Oxygen (O2, mg/L) after 48 h:
concentration (mg/L) oxygen
31.25 8.2
62.5 8.13
125.0 8.15
250.0 8.16
500.0 8.13
control 8.16
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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