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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

There is no data available for this substance. However, key and supporting data is available for structural analogues Hydrocarbons C16 -C20, n-alkanes, isoalkanes, cyclics (2 -30% aromatics) and Hydrocarbons C11 -C20, n-alkanes, isoalkanes, cyclics (2 -30% aromatics) and is presented in this dossier. The data is read across to this substance based on analogue read across and a discussion and report on the read across strategy is provided as an attachment in IUCLID Section 13.

The substances are poorly soluble and made of constituents with various water solubility. As a consequence, the exposures were performed with Water Accommodated Fractions (WAFs). Therefore, the results are based on nominal loadings.

Additional information

Key and supporting information is summarised below:

Short-term toxicity to fish

In both the key and supporting study, Hydrocarbons C16-C20, n-alkanes, isoalkanes, cyclics, aromatics (2-30%) presented a 96-h LL50 (mortality) for Oncorhynchus mykiss of >1000 mg/L.

Long-term toxicity to fish

Hydrocarbons, C11 -C20, n-alkanes, isoalkanes, cyclics, aromatics (2 -30%) and Hydrocarbons, C16 -C20, n-alkanes, isoalkanes, cyclics, aromatics (2 -30%) did not show toxic effects as a Water Accommodated Fraction (WAF) to Brachydanio rerio, with a 21 -day LL50 of >5000 mg/l. It is therefore not chronically toxic to fish.

Short-term toxicity to aquatic invertebrates

In both the key and supporting study, Hydrocarbons C16-C20, n-alkanes, isoalkanes, cyclics, aromatics (2-30%) did not produce acute toxicity to Daphnia magna at 1000 mg/l, based on nominal loading of the test substance in water.

Long-term toxicity to aquatic invertebrates

Hydrocarbons, C11 -C20, n-alkanes, isoalkanes, cyclics, aromatics (2 -30%) showed toxic effects as a Water Accommodated Fraction (WAF) with a 21 -day EL50 of approximately 1400 mg/l and an NOELR of 17 mg/l (based on inhibition of reproduction).

Toxicity to algae and cyanobacteria

Hydrocarbons, C16-C20, n-alkanes, isoalkanes, cyclics, aromatics (2-30%) did not produce a significant effect on biomass or growth rate at 1000 mg/l, based on nominal loading of the test substance in water.

Toxicity to microorganisms

Hydrocarbons, C16-C20, n-alkanes, isoalkanes, cyclics, aromatics (2-30%), did not inhibit microbial respiration in a sludge sample at a concentration of 1000 mg/l. Therefore, Hydrocarbons, C16-C20, n-alkanes, isoalkanes, cyclics, aromatics (2-30%), is not expected to adversely affect microbial activity in a wastewater treatment plant.