Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

Valid data on n/i-C13 -C15 –aldehydes are available for the endpoints acute toxicity to fish and microorganisms as follows:

- Acute toxicity to fish: Based on mean measured concentrations, the 96 -h LC50 was >0.4 and <0.9 mg/L in an acute fish toxicity study using Tween 80 as emulsifier (Hoechst, 1994). As a surrogate an LC50 of 0.8 mg/L can be used for PNEC calculations based on the geometric mean of the LC0 (0.4 mg/L) and the LC100 (1.6 mg/L).

- Toxicity to microorganisms: n/i-C13 -C15 –aldehydes at 23.6 mg/L (nominal) was not toxic to microorganism (NOEC; Harlan, 2011).

Results from a structurally related substance (nonanal) may be used to cover the following endpoints:

- Acute toxicity to Daphnia magna: the 48-h EC50 was 1.54 mg/L (measured; Ward, 2003).

- Growth inhibiting on the green alga Selenastrum capricornutum in a 72 -h study according to OECD TG 201: the ErC50 was 4.5 mg/L (measured; Ward, 2003).

The data above indicate that N-/iso-C13-C15 aldehydes is acutely toxic to aquatic organisms to an extent that requires classification (GHS: Aquatic Acute 1; GHS: Aquatic Chronic 1).

The long chain N-/iso- C13-C15 aldehydes are poorly soluble in water (2 mg/L; cf. section 4.8), and the Log Pow is high (6 to 7; cf. section 4.7).