Registration Dossier
Registration Dossier
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EC number: 236-690-7 | CAS number: 13464-97-6
Endpoint summary
Administrative data
Description of key information
Additional information
Reliable data are available on the short-term toxicity of hydrazine mononitrate (by read-across from hydrazine) to algae (Scenedesmussubspicatus and Pseudokirchneriella subcapitata) the invertebrate Daphnia pulexand the freshwater fish Ictalurus punctatus, Lebistes reticluatus, Lepomis macrochirus, Leucius idus melanotus, Notemigonus crysoleucas and Pimephales promelas. On the basis of the available short-term toxicity data for algae, invertebrates and fish the lowest reliable toxicity value is the 72h EC50 of 0.012 mg/l generated in the experimental toxicity study with the freshwater algaePseudokirchneriella subcapitata (formerly Selenastrum capricornutum).The two algal growth studies were not carried out according to standardised methodologies (i.e. OECD or US EPA Procedures) and as such are both of Klimisch Code 2 (Reliable with restrictions). However, they both report similar NOEC values (0.001 mg/l forPseudokirchneriella subcapitataand 0.005 mg/l forScenedesmus subspicatus) and as a result they provide a weight of evidence that alga are the most sensitive taxa to hydrazine mononirate in short-term aquatic toxicity tests.
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