Registration Dossier
Registration Dossier
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EC number: 202-980-7 | CAS number: 101-83-7
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Activated Sludge: EC50(3h): 712 mg/L (nominal concentration) based on respiration rate (ISO 8192 - Test for Inhibition of Oxygen Consumption by Activated Sludge, comparable to OECD TG 209, static test)
Key value for chemical safety assessment
- EC50 for microorganisms:
- 712 mg/L
Additional information
Toxicity of dicyclohexylamine to activated sludge was evaluated by Bayer AG (1990) according to the ISO 8192, comparable to OECD TG 209. The activated sludge obtained an EC50 value of 712 mg/L when exposed to dicyclohexylamine for 3 hours.
There is also one other study (data assessed as 4 according to Klimish codes) in the OECD Screening Information DataSets (SIDS) for DCHA: Cell multiplication inhibition test (method according to Bringmann, G.; Kuehn, R.: WAF 10, 87-98 (1977)) with result 18 h EC0 = 500 mg/L, but the data are insufficient for detailed assessment.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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