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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

The short-term toxicity of cyclohexylamine to fish was tested according to OECD TG 204. Using un-buffered media, after 14 days an EC50 of 19 mg/L was observed (MITI, 1997).

The short-term toxicity of cyclohexylamine to aquatic invertebrates (Daphnia magna) was tested according to OECD TG 202. After 48 hours of exposure an EC50 of 36.3 mg/L was obtained (MITI, 1997).

The long-term toxicity of cyclohexylamine to aquatic invertebrates (Daphnia magna) was assessed in a reproduction test, performed according the OECD Guideline 211. After 21 days of exposure a NOEC for reproduction of 1.6 mg/l was determined (MITI, 1997).

Concerning the toxicity to algae, the fresh water algae Pseudokirchnerella subcapitata was exposed to cyclohexylamine for 72 hours. The experiment was conducted according to OECD Guideline 201 yielding a 72 -h NOEC of 10.3 mg/L and a 72-h EC50 of 29.3 mg/L having inhibition of growth as endpoint (MITI, 1997).

The toxicity of cyclohexylamine to activated sludge was investigated according to ISO 8192 (Test for Inhibition of Oxygen Consumption by Activated Sludge) yielding an EC50(3 h) of 2251 mg/L and an EC10(3 h) of 326 mg/L (Bayer AG, 1990).