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Diss Factsheets
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EC number: 470-080-3 | CAS number: -
- 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
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Endpoint summary
Administrative data
Key value for chemical safety assessment
Additional information
There are reliable in vitro studies available to assess the potential of the test substance for both gene mutations in bacteria and cytogenicity in mammalian cells.
Gene mutation in bacteria
In a GLP conform Ames test according to OECD guideline 471, the substance 1-((2-Butyloctyloxymethyl)-2-(3,4-dihydro-isoquinolinium-2-yl)ethyl)sulfate (purity: 93.0 weight-%) was tested for its mutagenic potential based on the ability to induce point mutations in selected loci of several bacterial strains, i.e. Salmonella typhimurium TA 1535, TA 100, TA 1537, TA 98 and Escherichia coli WP2 uvrA (BASF 2006). Two independent assays were performed, a standard plate test (SPT) and a preincubation test (PIT), both with a dose range of 56 µg - 5500 µg/plate, and both with and without metabolic activation (Aroclor 1254-induced rat liver S-9 mix).
An increase in the number of his+ or trp+ revertants was not observed in the standard plate test or in the preincubation test either without S-9 mix or after the addition of a metabolizing system. Precipitation of the test substance was found from about 557 mg/plate onward. A slight decrease in the number of revertants was occasionally observed depending on the strain and test conditions at doses >= 1750 µg/plate.
According to the results of the present study, the test substance is not mutagenic in the Salmonella typhimurium/ Escherichia coli reverse mutation assay under the experimental conditions chosen here.
Gene mutation in mammalian cells
In an in vitro gene mutation test (HPRT) in CHO cells the substance 1-((2-Butyloctyloxymethyl)-2-(3,4-dihydro-isoquinolinium-2-yl)ethyl)sulfate was assessed for its potential to induce gene mutations. Two independent experiments were carried out, both with and without the addition of liver S9 mix from induced rats (exogenous metabolic activation). The following concentrations were assessed:
1st experiment
without S9 mix (4-hour exposure period)
0; 6.3;12.5; 25.0; 50.0; 75.0; 100.0; 150.0; 200.0 μg/mL
with S9 mix (4-hour exposure period)
0; 31.3; 62.5; 125.0; 500.0; 750.0; 1 000.0; 1 250.0; 1 500.0 μg/mL
2nd experiment
without S9 mix (24-hour exposure period)
0; 1.6; 3.1; 6.3; 12.5; 20.0; 30.0; 40.0; 60.0 μg/mL
with S9 mix (4-hour exposure period)
0; 31.3; 62.5; 125.0; 500.0; 750.0; 1 000.0; 1 250.0; 1 500.0 μg/mL
The vehicle controls gave mutant frequencies within the range expected for the CHO cell line. Both positive control substances, EMS and MCA, led to the expected increase in the frequencies of forward mutations.
In the absence of metabolic activation, in both experiments the highest concentrations applied could not be evaluated for gene mutations due to pronounced cytotoxicity. In the presence of metabolic activation, the highest concentration that could be formulated in the vehicle DMSO (1500 μg/mL) led to slightly reduced cloning efficiencies of about 50% survival in both experiments.
On the basis from the results of the present study, the test substance did not cause any relevant increase in the mutant frequencies neither without S9 mix nor after adding a metabolizing system in two experiments performed independently of each other, and apply clear cytotoxic or maximum soluble concentrations.
Thus, under the experimental conditions of this study, 1-((2-Butyloctyloxymethyl)-2-(3,4-dihydro-isoquinolinium-2-yl)ethyl)sulphate is not mutagenic in the HPRT locus assay under in vitro conditions in CHO cells in the absence and the presence of metabolic activation.
Cytogenicity in mammalian cells
In a GLP conform study according to OECD guideline 473, the substance 1-((2-Butyloctyloxymethyl)-2-(3,4-dihydro-isoquinolinium-2-yl)ethyl)sulfate was assessed for its potential to induce structural chromosomal aberrations (clastogenic activity) and/or changes in the number of chromosomes (aneugenic activity) in V79 cells in vitro both in the presence and in the absence of a metabolizing system.
According to an initial range-finding cytotoxicity test for the determination of the experimental doses and taking into account the cytotoxicity actually found in the main experiments, the following doses were tested (the test groups in brackets were not evaluated):
- 1st experiment:
4-hour exposure, 18-hour sampling time, without S-9 mix: 0; 62.5 ; 125.0; 250.0 (500.0; 750.0; 1000) µg/mL;
4-hour exposure, 18-hour sampling time, with S-9 mix: 0; (250.0;) 500.0 ; (750.0;) 1000.0; (1250.0;) 1500.0 µg/mL.
- 2nd experiment
18-hour exposure, 18-hour sampling time, without S-9 mix: 0; 6.25; 12.5; 25.0; (50.0; 75.0; 100.0; 200.0) mg/mL
For confirmation of the results of the 1st and 2nd experiments including continuous exposure and a second sampling time, the following doses were tested in the amendment report:
- 3rd experiment
18-hour exposure, 28-hour sampling time, without S-9 mix: 0; (6.3; 12.5; 25;) 50(; 100) μg/mL
4-hour exposure, 28-hour sampling time, with S-9 mix: 0; 31.3; 62.5; (125;) 500; 1000(; 1500) μg/mL
About 2-3 hours prior to harvesting the cells, Colcemid was added to arrest cells at a metaphase-like stage of mitosis (c-metaphases). After preparation of the chromosomes and staining with Giemsa, 100 metaphases for each culture in the case of the test substance, and vehicle controls, or 50 cells for each culture in the case of the concurrent positive controls, were analyzed for chromosomal aberrations.
The negative controls (vehicle controls) gave frequencies of aberrations within the range expected for the V79 cell line. Both of the positive control chemicals, i.e. EMS and cyclophosphamide, led to the expected increase in the number of cells containing structural chromosomal aberrations.
On the basis of the results of the present study, the test substance did not cause any increase in the number of structurally aberrant metaphases incl . and excl. gaps either without S-9 mix or after adding a metabolizing system in two experiments performed ndependently of each other and apply clear cytotoxic concentrations. No increase in the frequency of polyploid cells was demonstrated either. Thus, under the experimental conditions of this assay, the test substance is considered not to be either a clastogenic or an aneugenic agent under in vitro conditions in V79 cells.
Short description of key information:
In vitro:
The test substance 1-((2-Butyloctyloxymethyl)-2-(3,4-dihydro-isoquinolinium-2-yl)ethyl)sulfate showed no mutagenic effects in a reverse mutation test (Ames test) in bacteria (S. typhimurium/ E.coli) with and without metabolic activation.
Gene mutation in mammalian cells
The test substance 1-((2-Butyloctyloxymethyl)-2-(3,4-dihydro-isoquinolinium-2-yl)ethyl)sulfate showed no mutagenic effects in an in vitro gene mutation test (HPRT) in CHO cells with and without metabolic activation.
Cytogenicity in mammalian cells
The test substance 1-((2-Butyloctyloxymethyl)-2-(3,4-dihydro-isoquinolinium-2-yl)ethyl)sulfate showed no mutagenic effects in a chromosome aberration test in V79 cells with and without metabolic activation.
In vivo
No data available and required.
Endpoint Conclusion: No adverse effect observed (negative)
Justification for classification or non-classification
Based on the available in vitro studies, there is no indication for a mutagenic potential of the test substance. Thus, the test substance has not to be classified with regard to mutagenicity according to 67/548/EEC and to Regulation (EC) No 127272008 (GHS, CLP).
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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