Registration Dossier
Registration Dossier
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EC number: 227-290-3 | CAS number: 5766-67-6
Endpoint summary
Administrative data
Description of key information
Additional information
A read-across document was prepared to justify the estimation of the aquatic toxicity partly based on data for the analogue substance PDTN.
For PDTN, acute ecotoxicity tests are available for fish, daphnia, algae and micro-organisms. The EC50 or LC50 in these studies was observed to be > 100 mg/L. Also for EDTN, an acute toxicity test for fish is available, showing a 96h LC50 > 138 mg/L. Based on the similar results in the fish toxicity study of > 100 mg/L, a read across of the PDTN ecotoxicity data for Daphnia, algae and micro-organisms to EDTN is considered justified. Therefore, the ecotoxicity of EDTN for aquatic invertebrates, algae and micro-organisms is expected to be > 100 mg/l.
|
Test species |
Result |
Guideline |
Remarks |
Fish |
Danio rerio |
EDTN: 96h-LC50 > 138 mg/l |
OECD 203 |
Rel. 2 Shi 2009 |
|
Danio rerio |
PDTN: 96h-LC50 > 100 mg/l |
OECD 203 |
Rel. 2 Bogers 1998 |
Invertebrates |
Daphnia magna |
PDTN: 72h-EC50 > 100 mg/l Read across for EDTN: 72h-EC50 > 100 mg/l |
OECD 202 |
Rel. 2 Bogers 1998 |
Algae |
Pseudokirchneriella subcapitata |
PDTN: 72-h ErC50 = 129 mg/L Read across for EDTN: 72h-EC50 > 100 mg/l |
OECD 201 |
Rel. 2 Bogers 1998 |
| Micro-organisms | Municipal sewage sludge | PDTN: (30 min) EC10 > 100 mg/L | OECD 209 | Rel.2 Desmares-Koopmans, 1998 |
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