Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to soil macroorganisms except arthropods

Administrative data

toxicity to soil macroorganisms except arthropods: long-term
Type of information:
experimental study planned
Study period:
To be confirmed.
Justification for type of information:
ECHA communication number TPE-D-2114551772-46-01/D provided for a draft decision requesting this study to be conducted. The registrant does not intend to challenge this request, and hence this test is included as a proposal for transparency. The testing will be undertaken in accordance with the requirements of the final decision and the dossier duly updated.

Data source

Materials and methods

Test guideline
according to guideline
OECD Guideline 222 (Earthworm Reproduction Test (Eisenia fetida/Eisenia andrei))
Version / remarks:
The Earthworm Reproduction Test (test method: OECD TG 222), the Enchytraeid Reproduction Test (OECD TG 220) and the Collembolan Reproduction Test in Soil (OECD TG 232) are appropriate to cover the information requirement for long-term toxicity on terrestrial invertebrates (ECHA Guidance R. OECD 222 is selected as appropriate to address the requirements as an appropriate test.
not applicable

Test material

Constituent 1
Test material form:
solid: particulate/powder
Details on test material:
Test substance: 206774/A (formerly known as 202199)
Identification: Lowinox® AH25
Appearance: White to cream coloured powder
Batch: WAH4L0016/WAH8E0007
Purity/Composition: 95.1%/95.88%
Test substance storage: At room temperature
Stable under storage conditions until: 09 November 2018 (retest date)/07 May 2022 (retest date)
Purity/composition correction factor: No correction factor required
Test substance handling: No specific handling conditions required
Stability at higher temperatures: Not indicated
Chemical name (IUPAC), synonym or trade name: 2,5-di-tert-pentylhydroquinone
CAS Number: 79-74-3
Molecular formula: C16H26O2
Molecular weight: 250.38
Highly reactive to water: Not indicated
Highly reactive to oxygen: Not indicated
Volatile: Not indicated

Vehicle information
Solubility in water: 1 g/L at 20°C
Stability in water: Not indicated

Results and discussion

Applicant's summary and conclusion