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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

No terrestrial toxicity data are available for Hydrocarbons, C16-C22, n-alkanes, isoalkanes, <2% aromatics. However, toxicity studies for related GTL-derived substances in the relevant carbon number range are available with soil macroorganisms (Eiseinia foetida), terrestrial plants (Glycine max, Lycopersicon esulentum, Sinapis alba, Avena sativa, Lolium perenne) and soil microorganisms. For GTL Gasoil a short-term and a long-term soil organism toxicity study are available for earthworms (E. foetida), which indicate that the test substance is of low toxicity: NOEC (14-d and 28-d) ≥1000 mg/kg dw, based on mortality and reproduction (Priestly, 2010c and Schmidt, 2011a, respectively). GTL Gasoil was tested with a series of plants in growth studies which also indicated the low toxicity of the test substance. The lowest EC50(21-d) was 990 mg/kg dw with L. perenne based on growth, while the lowest NOEC (21-d) was 560 mg/kg dw recorded with S. alba also based on growth (Goodband, 2011b). A nitrogen transformation test with GTL Gasoil resulted in an EC50(28-d) value of 320 mg/kg and a NOEC (28-d) of 180 mg/kg based on nitrate formation rate (Clarke, 2010a).

Several studies with terrestrial organisms are available with GTL Base Oil Distillates. A short-term and a long-term toxicity study are available with the earthworm Eisenia foetida (Priestly, 2010d and Schmidt 2011b). The studies reported respectively a 14 day LC50value of >1000 mg/kg dw and a 4 week NOEC value of ≥1000 mg/kg dw. A nitrogen transformation test resulted in an EC50(28-d) value of >1000 mg/kg based on nitrate formation rate (Clarke, 2010b).

Additionally, in a plant seedling emergence and growth test five plant species, three dicotyledonous species, soybean (Glyicine max), tomato (Lycopersicon esulentum) and mustard (Sinapis alba) and two monocotyledonous species, oat (Avena sativa) and perennial ryegrass (Lolium perenne) no effects were recorded after 21 or 22 days exposure up to a concentration of 1000 mg/kg dw (Goodband, 2011d).


Overall, the studies indicate that GTL Gasoil and GTL Base Oil Distillates exhibit low toxicity to terrestrial dwelling organisms. These are used as read across data to Hydrocarbons, C16-C22, n-alkanes, isoalkanes, <2% aromatics.