Registration Dossier
Registration Dossier
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EC number: 245-883-5 | CAS number: 23783-42-8
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
POLYSEED: IC10=10000mg/l, IC50=23500mg/l (TetraEGME)
Activated sludge: EC0>2000mg/l (TEGME)
POLYSEED: IC10=5000mg/l, IC50>50000mg/l (TEGME
Key value for chemical safety assessment
- EC50 for microorganisms:
- 23 500 mg/L
- EC10 or NOEC for microorganisms:
- 10 000 mg/L
Additional information
Toxicity data is available for a methyl tetraglycol. Against a broad spectrum micro-organisms mixture an IC10 of 10000mg/l and an IC50 of 23500mg/l was established when tested using the substance. In an activated sludge respiration inhibition test, no inhibition was found up to the maximum tested concentration of 2000mg/l with the substance triethylene glycol methyl ether. In a Microtox assay using the same substance and a photobacterium, the IC50 was not reached up to the maximum tested concentration of 50000mg/l.
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