Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 939-579-8 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Additional information
Acute and chronic data of reliability 2 (Klimisch rating), based on international guidelines, are available for three trophic levels: Algae, Invertebrates and Fish. The results are summarized in the table below.
Organism |
EC50/LC50 (mg dry extract/L) |
EC10/NOEC (mg dry extract/L) |
Flag / reliability |
Reference in IUCLID |
Acute |
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Aquatic algae (acute and chronic data) |
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Scenedesmus subspicatus |
72h: 2.43 |
72h: 0.54 |
K/2 |
CHIMEXANE HB, Toxicity to aquatic algae and cyanobacteria, Pic, 1994, RS, K |
Aquatic invertebrates |
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Daphnia magna |
48h: 4.9 |
- |
K/2 |
CHIMEXANE HB, Short-term toxicity to aquatic invertebrates, Calmels, 1994, RS, K |
Fish |
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Oncorhynchus mykiss |
96h: 1.61 |
- |
K/2 |
CHIMEXANE HB, Short-term toxicity to fish, Scheerbaum, 2009, RS, K |
Micro-organisms |
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Activated sludge |
3h: 95.2 |
3h: 20.2 |
K/2 |
CHIMEXANE HB, Toxicity to microorganisms, Fiebig, 2010, RS, K |
Chronic |
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Aquatic invertebrates |
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Daphnia magna |
- |
21d: 1.29 |
K/2 |
CHIMEXANE HB, Long-term toxicity to aquatic invertebrates, Noack, 2010, RS, K |
Fish |
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Oncorhynchus mykiss |
- |
28d: 0.495 |
K/2 |
CHIMEXANE HB, Long-term toxicity to fish, Scheerbaum, 2009, RS, K |
Among all data available, the fish Oncorhynchus mykiss seems to be the most sensitive species in acute and chronic exposure with a 96h-LC50 at 1.61 mg/L and a 28h-NOEC at 0.495 mg dry extract/L.
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