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EC number: 305-053-6 | CAS number: 94333-72-9
- 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 aquatic algae and cyanobacteria
Administrative data
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 201 (Freshwater Alga and Cyanobacteria, Growth Inhibition Test)
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.3 (Algal Inhibition test)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Citronellol
- EC Number:
- 203-375-0
- EC Name:
- Citronellol
- Cas Number:
- 106-22-9
- Molecular formula:
- C10H20O
- IUPAC Name:
- 3,7-dimethyloct-6-en-1-ol
- Reference substance name:
- Geraniol
- EC Number:
- 203-377-1
- EC Name:
- Geraniol
- Cas Number:
- 106-24-1
- Molecular formula:
- C10H18O
- IUPAC Name:
- (E)-3,7-dimethylocta-2,6-dien-1-ol
- Reference substance name:
- (E)-6,10-dimethylundeca-3,9-dien-2-one
- Cas Number:
- 19870-49-6
- Molecular formula:
- C12H20O
- IUPAC Name:
- (E)-6,10-dimethylundeca-3,9-dien-2-one
- Reference substance name:
- Dipentene
- EC Number:
- 205-341-0
- EC Name:
- Dipentene
- Cas Number:
- 138-86-3
- Molecular formula:
- C10H16
- IUPAC Name:
- 1-methyl-4-(prop-1-en-2-yl)cyclohex-1-ene
- Reference substance name:
- Linalool
- EC Number:
- 201-134-4
- EC Name:
- Linalool
- Cas Number:
- 78-70-6
- Molecular formula:
- C10H18O
- IUPAC Name:
- 3,7-dimethylocta-1,6-dien-3-ol
- Reference substance name:
- (±)-(1α,2β,5α)-5-methyl-2-(1-methylvinyl)cyclohexan-1-ol
- EC Number:
- 256-557-7
- EC Name:
- (±)-(1α,2β,5α)-5-methyl-2-(1-methylvinyl)cyclohexan-1-ol
- Cas Number:
- 50373-36-9
- Molecular formula:
- C10H18O
- IUPAC Name:
- rel-(1R,2S,5R)-5-methyl-2-(prop-1-en-2-yl)cyclohexanol
- Reference substance name:
- (1α,2β,4β)-1-methyl-2,4-bis(methylvinyl)-1-vinylcyclohexane
- EC Number:
- 251-713-0
- EC Name:
- (1α,2β,4β)-1-methyl-2,4-bis(methylvinyl)-1-vinylcyclohexane
- Cas Number:
- 33880-83-0
- Molecular formula:
- C15H24
- IUPAC Name:
- rel-(1R,2R,4S)-1-methyl-2,4-di(prop-1-en-2-yl)-1-vinylcyclohexane
- Reference substance name:
- (1E,6E)-8-isopropyl-1-methyl-5-methylenecyclodeca-1,6-diene
- Cas Number:
- 105453-16-5
- Molecular formula:
- C15H24
- IUPAC Name:
- (1E,6E)-8-isopropyl-1-methyl-5-methylenecyclodeca-1,6-diene
- Reference substance name:
- rel-(1R,4aR,8aS)-1-isopropyl-4,7-dimethyl-1,2,4a,5,6,8a-hexahydronaphthalene
- Cas Number:
- 31983-22-9
- Molecular formula:
- C15H24
- IUPAC Name:
- rel-(1R,4aR,8aS)-1-isopropyl-4,7-dimethyl-1,2,4a,5,6,8a-hexahydronaphthalene
- Reference substance name:
- rel-(1R,4aS,8aS)-1-isopropyl-7-methyl-4-methylene-1,2,3,4,4a,5,6,8aoctahydronaphthalene
- Cas Number:
- 39029-41-9
- Molecular formula:
- C15H24
- IUPAC Name:
- rel-(1R,4aS,8aS)-1-isopropyl-7-methyl-4-methylene-1,2,3,4,4a,5,6,8aoctahydronaphthalene
- Reference substance name:
- rel-(1R,8aS)-1-isopropyl-4,7-dimethyl-1,2,3,5,6,8ahexahydronaphthalene
- Cas Number:
- 60305-17-1
- Molecular formula:
- C15H24
- IUPAC Name:
- rel-(1R,8aS)-1-isopropyl-4,7-dimethyl-1,2,3,5,6,8ahexahydronaphthalene
- Reference substance name:
- rel-2-((1R,3S,4S)-4-methyl-3-(prop-1-en-2-yl)-4-vinylcyclohexyl)propan-2-ol
- Cas Number:
- 23811-48-5
- Molecular formula:
- C15H26O
- IUPAC Name:
- rel-2-((1R,3S,4S)-4-methyl-3-(prop-1-en-2-yl)-4-vinylcyclohexyl)propan-2-ol
- Reference substance name:
- 5,9-dimethyl-2-(6-methylhept-5-en-2-yl)deca-2,8-dienal
- Cas Number:
- 82451-80-7
- Molecular formula:
- C20H34O
- IUPAC Name:
- 5,9-dimethyl-2-(6-methylhept-5-en-2-yl)deca-2,8-dienal
- Reference substance name:
- Likely oxygenated constituent
- IUPAC Name:
- Likely oxygenated constituent
- Reference substance name:
- Unknown Impurities
- IUPAC Name:
- Unknown Impurities
- Test material form:
- liquid
Constituent 1
Constituent 2
Constituent 3
Constituent 4
Constituent 5
Constituent 6
Constituent 7
Constituent 8
Constituent 9
Constituent 10
Constituent 11
Constituent 12
Constituent 13
Constituent 14
Constituent 15
- Specific details on test material used for the study:
- Test Item: Baccartol Crude
Batch Number: VE00364716
Purity: Not applicable - complex mixture
Appearance: yellow viscous liquid
Expiry date: 2017-04-02
Recommended storage: Keep container tightly closed in a dry and well-ventilated place at ambient temperature (10 - 30 °C) protected from light.
Sampling and analysis
- Analytical monitoring:
- yes
Test solutions
- Details on test solutions:
- Water Accommodated Fraction (WAF)
In view of the difficulties associated with the evaluation of aquatic toxicity of poorly water soluble test items, a modification of the standard method for the preparation of aqueous media was performed. An approach endorsed by several important technical groups in the EU and elsewhere (ECETOC 1996 and OECD 2000) is to expose the organisms to a Water Accommodated Fraction (WAF) of the test item in cases where the test item is a complex mixture and is poorly soluble in water and in the permitted solvents. Using this approach, aqueous media was prepared by mixing the test item with water for a prolonged period sufficient to ensure equilibration between the test item and the water phase. After completion of mixing and following a settlement period, the test item phase was separated by siphon and the test organisms were exposed to the equilibrated aqueous phase, i.e. the WAF. Exposure was expressed in terms of the original concentration of the test item in water at the start of the mixing period (loading rate) irrespective of the actual concentration of the test item in the WAF.
Preparation of the water accommodated fractions
Five water accommodated fractions (WAF) were prepared with loadings of the test item in the range of 3.125 to 50.0 mg/L: 3.125 - 6.25 - 12.5 - 25.0 - 50.0 mg/L. The loading levels are based on the non-GLP preliminary range finding test.
For each loading level, an appropriate amount of the test item was pipetted into a brown glass flask with an appropriate amount of dilution water (see Table 2). These dispersions were shaken for 24 hours at 20 rpm at room temperature. After a separation phase of 1 hour, the WAF’s were removed by siphoning (from the approximate bottom of the flask) and used in the test. The WAF’s were checked via laser beam (Tyndall effect) for undissolved particles.
Test loading
Per definition of the WAF all terms related to concentration level are given as loading level because partly dissolved compounds and mixtures cannot be related to concentrations.
Test organisms
- Test organisms (species):
- Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata, Selenastrum capricornutum)
- Details on test organisms:
- Test organism Pseudokirchneriella subcapitata HINDÁK, SAG 61.81
Reason for the selection of the test organism: Pseudokirchneriella subcapitata is a suitable green alga species according to the guideline.
Origin: Sammlung von Algenkulturen (SAG) Pflanzenphysiologisches Institut der Universität Göttingen Nikolausberger Weg 18, D-37073 Göttingen
Cultivation at test facility: Fresh stocks are prepared every month on Z-Agar. Light intensity amounted to 2567-5130 lux for 24 hours per day.
Culture medium: Nutrient medium Z according to LÜTTGE et al. (1994)
Study design
- Test type:
- static
- Water media type:
- freshwater
- Total exposure duration:
- 72 h
Test conditions
- Hardness:
- The medium had a nominal hardness of 0.24 mmol Ca+Mg/L.
- Test temperature:
- Nominal range: 21 - 24 °C, controlled at ± 2 °C.
- pH:
- The pH-value at the start of exposure was measured in one additional replicate of each test item concentration and the control. At the end of exposure, the pH-value was measured from pooled samples of each test item concentration and the control after measurement of the cell density.
- Nominal and measured concentrations:
- Range finding Test
Nominal: 1, 10 and 100 mg/l
Measured at 0 h: 0.850, 11.7 and 98.7 mg/l
Measured at 72 h: 0.830, 2.47 and 75.9 mg/l
Definitive Test
Nominal: 3.125, 6.25, 12.5, 25.0, 50.0 mg/L
Geometric mean measured: 1.88, 5.28, 7.64, 18.0 nad 39.1 mg/l
The measured concentrations of BACCARTOL CRUDE in the fresh media (0 h) were in the range of 88 to 113% of the nominal values at all tested concentration levels. The measured concentrations in the old media (72 h) were in the range of 37 to 63 % of the nominal values of all concentrations. - Reference substance (positive control):
- yes
- Remarks:
- Potassium dichromate
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 72 h
- Dose descriptor:
- EL50
- Effect conc.:
- 9.12 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- EL10
- Effect conc.:
- 5.67 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Details on results:
- Effects based on yield were also reported (see attached full study report). However, the preferred observational endpoint in the algal inhibition study is growth rate because it is not dependent on the test design (ECHA guidance Chapter R.7b v 2.0, OECD 201 Guidelines). The guideline includes the additional response variable of yield, to satisfy current regulatory requirements in some countries. The EU CLP regulation (No 1272/2008 and its adaption 286/2011) also states that classification should be based on the ErC50. Thus only the effects based on growth rate are presented in the above "effects concentration" table. Furthermore, the preferred observational endpoint in long-term studies is the EC10 value because it is derived from the dose response curve. In contrast the NOEC strongly depends on the experiment design (e.g. the concentrations used in the test). Thus, only the EL10 is presented in the above "effects concentration" table. The NOEC values are available in the full study report.
- Results with reference substance (positive control):
- The toxicity of potassium dichromate (Sigma, batch number MKBV0900V, purity 99.0 %, CAS RN 7778-50-9) to the unicellular freshwater green alga Pseudokirchneriella subcapitata was determined over a period of 72 hours from 2016-10-11 to 2016-10-14 (with headspace) and 2016- 10-10 to 2016-10-13 (without headspace), respectively. The reference item toxicity is in the valid range following test facility SOPs.
Closed test vessels without headspace were used to mimic testing a volatile test item and results were compared with the standard system in open vessels. The data of both set-ups are consistent. It is evident from these results that the use of a modified test system to reduce losses of the test item through volatility (completely filled and sealed vessels) is expected to give results consistent with that obtained in a conventional system. As such it can be considered that the results from the definitive test give a reliable result for the test item.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- In this study, BACCARTOL CRUDE was found to inhibit the growth of the freshwater green alga Pseudokirchneriella subcapitata after 72 hours with the following effect values (based on nominal loading levels):
The EL50-values for inhibition of growth rate (ErL50) and yield (EyL50) after 72 hours were 9.12 (6.25 - 12.5) mg/L and 6.54 (3.125 - 12.5) mg/L, respectively. The EL10-values for inhibition of growth rate (ErL10) and yield (EyL10) after 72 hours were 5.67 (3.125 - 6.25) mg/L and <3.125 mg/L, respectively. The NOEL-values for inhibition of growth rate and yield after 72 hours were both < 3.125 mg/L.
The preferred observational end point in the algal growth inhibition test is growth rate because it is not dependent on the test design (ECHA guidance Chapter R.7b v2.0, OECD 201 Guideline). The EU CLP regulation (No 1272/2008 and its adaption 286/2011) also states that classification should be based on the ErC50. The preferred observational endpoint in long-term studies is the EC10 value because it is derived from the dose response curve. In contrast the NOEC strongly depends on the experiment design (e.g. the concentrations used in the test). Thus the 72-h EL50 and EL10 based on growth rate are used for classification purposes, which were determined in this study to be 9.12 mg/L and 5.67 mg/L respectively.
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