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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
short-term toxicity to fish
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Justification for type of information:
REPORTING FORMAT FOR THE ANALOGUE APPROACH
Please refer to IUCLID Section 13.
Reason / purpose for cross-reference:
read-across source
Key result
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Key result
Duration:
96 h
Dose descriptor:
NOEC
Effect conc.:
100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)

Description of key information

Acute toxicity to fish: LC50 = > 100 mg/L; NOEC = 100 mg/L

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
100 mg/L

Additional information

Acute toxicity of MHHPA was assessed from read across approach data available for the structural analogue 4-MHHPA as similar chemical and ecotoxicological properties were assumed. Acute toxicity to fish of 4 -MHHPA has been investigated in accordance with OECD/EU test methods. A static limit test was conducted with a single test item concentration of 100 mg/L with and without adjustment of the pH-value. No mortality occurred over the 96 hour duration of the test.