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EC number: 237-741-6 | CAS number: 13963-57-0
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Toxicity to other aquatic organisms
Administrative data
- Endpoint:
- toxicity to other aquatic vertebrates
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Jusqu'à 1985
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
Data source
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- Comparative Toxicity of Ten Common Aquatic Species
- Author:
- Thurston RV, Gilfoil TA, Meyn EL, Zajdel RK, Aoki TI, Veith GD
- Year:
- 1 985
- Bibliographic source:
- Water Research 19: 1145-1155
- Reference Type:
- publication
- Title:
- 2,4-Pentanedione. CAS N°: 123-54-6
- Author:
- OECD Organisation for Economic Co-operation and Development
- Year:
- 2 001
- Bibliographic source:
- SIDS Initial Assessment Report for SIAM 13 (Paris, France, in June) United Nations Environment Programme (UNEP) Publications, Nairobi, Kenya. 82 p. URL https://hpvchemicals.oecd.org/ui/handler.axd?id=AF8877C9-8DFB-45E0-8188-492EBA68CDAE
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: OECD Guideline 203 (Fish, Acute Toxicity Test)
- Version / remarks:
- Test adapté aux têtards.
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Pentane-2,4-dione
- EC Number:
- 204-634-0
- EC Name:
- Pentane-2,4-dione
- Cas Number:
- 123-54-6
- Molecular formula:
- C5H8O2
Constituent 1
- Specific details on test material used for the study:
- Substance d'une pureté supérieure à 99 %
Sampling and analysis
- Analytical monitoring:
- yes
- Details on sampling:
- Au moins 5 concentrations et le controle négatif (100 % eau de dilution) testés. Les analyses ont été faites sur des échantillons prélevés au commencemnent (temps T=0h) et à la fin de l'exposition (temps T=96h) ainsi que durant l'exposition (T = 48h et T = 72h).
Test solutions
- Vehicle:
- no
- Details on test solutions:
- 5 concentrations de la substance et un contrôle négatif ont été testés.
Tests conduits en duplicat séparemment
Test organisms
- Aquatic vertebrate type (other than fish):
- toad
- Test organisms (species):
- Rana catesbeiana
- Details on test organisms:
- ORGANISMES UTILISES PENDANT LES TESTS
- Nom commun: grenouille taureau (têtards)
- Source: Carolina Biological SuppLy, Burlington, NC, USA.
- Poids au début des tests: 2 - 5 g
- Poids moyen: test 1 = 2.20 g / test 2 = 2.25 g
ACCLIMATATION
- Période d'acclimatation: 2 semaines
- Conditions d'acclimatation: comparable à celles du test
- Type de nourriture pendant la période d'acclimatation: ration de nourriture pour truites (Rangen, Buhl, Idaho, USA)
- Fréquence de nourrissage pendant la période d'acclimatation: 2 fois par jour
NOURRITURE PENDANT LES TESTS
- Animaux non nourris pendant les tests
Study design
- Test type:
- flow-through
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 96 h
- Remarks on exposure duration:
- Aucune
- Post exposure observation period:
- Aucune
Test conditions
- Hardness:
- 196 mg/L CaCo3 pour les deux tests répliqués
- Test temperature:
- Test 1: 16.8 °C (16.2 - 17.3)
Test 2: 21.5 °C (19.7 - 22.3) - pH:
- Test 1: 7.85 (7.74 - 8.08)
Test 2: 8.03 (7.94 - 8.14) - Dissolved oxygen:
- Test 1: 7.80 mg/L (7.61 - 8.02)
Test 2: 5.95 (5.27 - 7.04) - Salinity:
- Non mesurée.
- Conductivity:
- Conductance: 340 Siemens à 25 °C
- Nominal and measured concentrations:
- Rapport de dilution entre les concentrations de 50 à 70%
- Details on test conditions:
- SYSTEME DE TEST
- Récipient de tests: aquarium en verre d'un volume de 20 à 60L
- Volume de test: non communiqué
- Type d'écoulement en continu: addition des contaminants avec des diluteurs proportionnels
- Nombre d'organismes par récipient de test (substance et contrôle): non communiqué
- Nombre de réplicats (récipients) par concentrations testées: 2 (mais traités séparemment)
- Nombre de réplicats (récipients) par contrôle négatif: 2 (mais traités séparemment)
PARAMETRES DU MILIEU DE TEST
- Préparation/source de l'eau de dilution: eau de source souterraine
- Carbon organique total: 3.3 mg/L
- Métaux (mg/L): Al < 0.02; Ba = 0.031; Be < 0.002; B < 0.01; Cd < 0.05; Ca = 46; Cr < 0.005; Cu < 0.002; F = 0.35; Fe < 0.004; Pb < 0.01; Mg = 9.8; Mn = 0.006; Hg < 0.00005; Mo < 0.05; Ni < 0.005; P < 1; K = 0.5; Si = 0.3; Na = 2; Sr < 0.05; Zn = 0.01
- Phosphates = 0.05 mg/L
- Sulphates = 17 mg/L
- Chlorure < 1 mg/L
- Alkalinité: 172 mg/L CaCO3
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 96 h
- Dose descriptor:
- LC50
- Effect conc.:
- 156 mg/L
- Nominal / measured:
- meas. (not specified)
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Remarks on result:
- other: Intervalle de confiance 95% = 140 - 174 mg/L
- Key result
- Duration:
- 96 h
- Dose descriptor:
- LC50
- Effect conc.:
- 73.9 mg/L
- Nominal / measured:
- meas. (not specified)
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Remarks on result:
- other: Intervalle de confiance 95% = 70.1 - 96.4
- Details on results:
- Mortalité dans les contrôles négatifs inférieure ou égale à 10%
- Results with reference substance (positive control):
- Pas applicable.
- Reported statistics and error estimates:
- Les concentrations létales médianes (CL50) et leurs intervalles de confiance ont été calculés selon la méthode de Trimmed Spearman-Karber.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- La partie organique de la substance à enregistrer (2,4-pentanedione) apparait comme nocive pour les têtards de grenouille taureau dans les conditions de test utilisées.
- Executive summary:
La toxicité de la 2,4 -pentanedione envers l'espèce Rana catestbiana a été évaluée par le biais d'un test de toxicité aigüe de 96h en écoulement continu avec une eau de dilution relativement dure (dureté de l'eau = 196 mg/L CaCO3).
Cet éssai indique une concentration létale médiane la plus faible (CL50) de 73.9 mg/L (intervalle de confiance 95%: 70.1 - 96.4 mg/L), les concentrations de la substance étant mesurées et l'effet observé étant basé sur la mortalité des têtards de grenouille taureau.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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