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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Long-term toxicity to fish

Currently viewing:

Administrative data

fish early-life stage toxicity
Type of information:
experimental study planned (based on read-across)
Justification for type of information:
See the report "Analogue Approach for REACH Registration of liquid AKD" in section 13.

Please postpone initiating the evaluation of this TP, as the read-across approach and the IUCLID dataset of this registrant, the lead registrant of the joint submission, are currently under revision and are interim submitted on request of the ECHA Chemistry Unit (submission deadline 31 May 2022) due to an informal data request of ECHA Chemistry Unit agreed during an informal call between the registrant and ECHA Chemistry Unit on 09 December 2021, concerning some aspects of the substance identity information. The read-across approach and the IUCLID dataset will be updated soon, with adding for instance an additional ready biodegradation study according to OECD 301B and an additional algae study according to OECD 201.
Reason / purpose for cross-reference:
read-across: supporting information

Data source

Materials and methods

Test guideline
according to guideline
OECD Guideline 210 (Fish, Early-Life Stage Toxicity Test)

Test material

Constituent 1
Chemical structure
Reference substance name:
2-Oxetanone, 3-C14-16-alkyl 4-C15-17-alkylidene derivs.
EC Number:
EC Name:
2-Oxetanone, 3-C14-16-alkyl 4-C15-17-alkylidene derivs.
Cas Number:
Molecular formula:
C32H60O2 / C34H64O2 / C36H68O2
4-(C15-C17) alkylidene-3-(C14-​16)​ alkyloxetan-2one
Details on test material:
Attached to the oxetane ring there is a C14 or C16 alkyl group in the 3-position and a C15 or C17 alkylidene group in the 4-position. The EC number 284-932-5 currently assigned does not specifically correspond to the registered substance. This identifier cannot be modified or deleted at this stage in the present registration update for technical reasons. The appropriate EC number for this substance is be EC 308-760-8 (EC name: 2-Oxetanone, 3-C14-16-alkyl 4-C15-17-alkylidene derivs.)

Results and discussion

Applicant's summary and conclusion