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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

One reliable (Klimisch 1; Klimisch 2 when used for read-across) toxicity study for microorganisms was available for Alchisor CAL 123 with read-across to Alchisor CAL 145.  The toxicity of Alchisor CAL 123 to activated sludge was reported by Schaefer & Twilly (2010) in an OECD 209 guideline and GLP compliant study.  Activated sludge was exposed nominal concentrations of toxicant for 3 hours, resulting in a 3-hr LC50 of >1,000 mg/L, based respiration.

Key value for chemical safety assessment

EC50 for microorganisms:
1 000 mg/L

Additional information

Alchisor CAL 145 comprises alkenes C13-14 hydroformylation products and read-across from the chemically-similar Alchisor CAL 123 has been used in this hazard assessment as defined in the `Read-Across Justification Document'. One reliable (Klimisch 1; Klimisch 2 when used for read-across) toxicity study for microorganisms was available for Alchisor CAL 123 with read-across to Alchisor CAL 145. The toxicity of Alchisor CAL 123 to activated sludge was reported by Schaefer & Twilly (2010) in an OECD 209 guideline and GLP compliant study. Activated sludge was exposed nominal concentrations of toxicant for 3 hours, resulting in a 3-hr LC50 of >1,000 mg/L, based respiration. This reliable study result is designated as Key for the toxicity to microorganisms endpoint.