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EC number: 940-284-1 | CAS number: 1591782-62-5
- 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
Genetic toxicity: in vivo
Administrative data
- Endpoint:
- in vivo mammalian somatic cell study: cytogenicity / erythrocyte micronucleus
- Remarks:
- Type of genotoxicity: other: clastogenicity/aneugenicity
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2013-06-05 to 2013-07-15
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2013
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 474 (Mammalian Erythrocyte Micronucleus Test)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.12 (Mutagenicity - In Vivo Mammalian Erythrocyte Micronucleus Test)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 870.5395 (In Vivo Mammalian Cytogenetics Tests: Erythrocyte Micronucleus Assay)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit, München, Germany
- Type of assay:
- micronucleus assay
Test material
- Reference substance name:
- D-Glucitol, 1-deoxy-1-(methylamino)-, N-[C8-10(even numbered) acyl] derivs.
- EC Number:
- 940-284-1
- Cas Number:
- 1591782-62-5
- Molecular formula:
- C15H31NO6 C17H35NO6
- IUPAC Name:
- D-Glucitol, 1-deoxy-1-(methylamino)-, N-[C8-10(even numbered) acyl] derivs.
- Reference substance name:
- Glucamide 810
- IUPAC Name:
- Glucamide 810
- Details on test material:
- Chemical Name: N-Octanoyl/Decanoyl-N-methyl-glucamin
Physical State: solid
Density: 1.065 at 65°C
pH: 8-10
Storage Conditions: at room temperature
Constituent 1
Constituent 2
Test animals
- Species:
- mouse
- Strain:
- NMRI
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Charles River, 97633 Sulzfeld, Germany
- Age at study initiation: minimum 7 weeks
- Assigned to test groups randomly: yes
- Fasting period before study: 4 hours
- Housing: 5 animals of identical sex per cage, IVC cage (Polysulphone), Type II L
- Diet (ad libitum): Altromin 1324 maintenance diet for rats and mice
- Water (ad libitum): tap water, sulphur acidified to pH value of approx. 2.8 (drinking water, municipal residue control, micro-biologically controlled at frequent intervals)
- Acclimation period: 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 ± 3 °C
- Humidity (%): 55 ± 10%
- Air changes (per hr): at least 10 x per hour
- Photoperiod (hrs dark / hrs light): artificial light 6:00 - 18:00
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- - Vehicle/solvent used: Aqua ad iniectabilia
- Justification for choice of solvent/vehicle: The vehicle was selected as suggested by the sponsor based on the test item’s characteristics.
- Concentration of test material in vehicle: 200 mg/mL (1 MTD), 100 mg/mL (0.5 MTD), 40 mg/mL (0.2 MTD)
- Amount of vehicle (if gavage or dermal): 10 mL per kg body weight
- Lot/batch no.: 26211S1_2, 26210S1_2 AlleMan Pharma - Details on exposure:
- PREPARATION OF DOSING SOLUTIONS:
The test item was weighed into a tarred plastic vial on a precision balance.
The dose formulations were prepared by adding the required volume of Aqua ad iniectabilia and further short vortexing. Afterwards the test item-water mixture was heated to 50°C and vortexed again. After cooling to RT, the test item was applied to the animals. In case of crystallization occurs, the test item-water mixture was again heated to 50°C and homogenized by vortexing.
All animals received a single volume orally of 10 mL/kg bw. - Frequency of treatment:
- The animals received the test item once orally.
- Post exposure period:
- Sampling of the peripheral blood was carried out on animals 44 h (all control and dose groups) and 68 h (negative control, 1 MTD group) after treatment.
Doses / concentrations
- Remarks:
- Doses / Concentrations:
three dose groups: 1 MTD (2000 mg/kg bw), 0.5 MTD (1000 mg/kg bw), 0.2 MTD (400 mg/kg bw)
Basis:
other: solution in Aqua ad iniectabilia
- No. of animals per sex per dose:
- 5
- Control animals:
- yes, concurrent vehicle
- Positive control(s):
- cyclophosphamide
- Justification for choice of positive control: clastogenic control substance, good stability at room temperature, broad basis of historical laboratory data
- Route of administration: intraperitoneal
- Doses / concentrations: 40 mg/kg body weight
Examinations
- Tissues and cell types examined:
- peripheral blood erythrocytes
- Details of tissue and slide preparation:
- CRITERIA FOR DOSE SELECTION:
A preceding study on toxicity was performed with the same strain and under identical conditions as in the main study. Three animals of each sex were treated orally for detection of the maximum tolerable dose. The maximum dose that was applied was 2000 mg/kg bw according the OECD 474 guideline. The maximum volume which was administered was 10 mL/kg bw. The highest dose group evaluated in the main experiment (2000 mg/kg bw) was based on the toxicity observed in the pre-experiment.
METHOD OF ANALYSIS:
Evaluation of all samples, including those of positive and negative controls, was performed using a flow cytometer (FACScan, BD Biosciences). Anti-CD71 antibodies were labelled with Fluorescein-isothiocyanate (FITC), anti-CD61 antibodies were labelled with Phycoerythrin (PE). Particles were differentiated using Forward Scatter (FSC) and Side Scatter (SSC) parameters of the flow cytometer. Fluorescence intensity were recorded on the FL1, FL2 and FL3 channels for FITC, PE and PI respectively. At least 10000 immature erythrocytes per animal were scored for the incidence of micronucleated immature erythrocytes. To detect an eventually occurring cytotoxic effect of the test item the ratio between immature and mature erythrocytes was determined. The results were expressed as relative PCE (rel. PCE = proportion of polychromatic (immature) erythrocytes among total erythrocytes). - Evaluation criteria:
- There are several criteria for determining a positive result:
- dose-related increase in the number of micronucleated cells and/or
- biologically relevant increase in the number of micronucleated cells for at least one of the dose groups.
According to the OECD guideline, the biological relevance as well as the statistical significance of the results are the criterion for the interpretation.
A test item is considered to be negative if there is no biologically relevant and/or statistically significant increase in the number of micronucleated cells at any dose level. - Statistics:
- For the statistics the nonparametric Mann-Whitney Test was used. However, both biological relevance and statistical significance were considered together.
Results and discussion
Test results
- Sex:
- male/female
- Genotoxicity:
- negative
- Toxicity:
- yes
- Vehicle controls validity:
- valid
- Negative controls validity:
- valid
- Positive controls validity:
- valid
- Additional information on results:
- RESULTS OF RANGE-FINDING STUDY
- Clinical signs of toxicity in test animals: In the pre-experiment a concentration of 200 mg/mL of the test item was evaluated. One male and one female mouse received a single dose of 2000 mg/kg bw orally and showed no signs of toxicity. The male mouse died 48 hours after treatment. As the animal showed during the entire treatment no clinical signs of toxicity three male and three female mice received a single dose of 2000 mg/kg bw orally. These mice showed toxicity such as reduction of spontaneous activity, catalepsis, bradykinesia, piloerection, and half eyelid closure.
RESULTS OF DEFINITIVE STUDY
- Toxicity in the main experiment:
2000 mg/kg bw was tested as the maximum tolerable dose (1 MTD) in the main experiment. The volume administered was 10 mL/kg bw oral.
All animals treated with the highest dose (1 MTD) showed mild to moderate toxic effects. The signs of toxicity were reduction of spontaneous activity, catalepsis, constricted abdomen, piloerection and half eyelid closure. After 4 h the female group showed no signs of toxicity anymore. Two male mice (one 1 MTD dose group and one 1 MTD reserve mouse) were found dead 24 hours after treatment. The 1 MTD dose group mouse was replaced by the remaining reserve animal. After 44 hours one additional male mouse of this group was found dead. Directly after the three animals were found dead autopsies were conducted. No abnormalities were found in all three cases. One female mouse showed directly after application strong signs of gasping, probably as a consequence of a wrong application of the test item (intratracheal). Based on animal welfare aspects this animal was euthanized and were replaced by a reserve animal.
Animals treated with 1000 mg/kg bw (0.5 MTD) and with 400 mg/kg bw (0.2 MTD) showed no toxic effects after the treatment with the test item.
- Induction of micronuclei (for Micronucleus assay):
The negative controls (44 h and 68 h) evaluated were within the range of the historical control data of the negative control (0.10 – 0.34%). The mean values of micronuclei observed for the negative control (44 h) were 0.24% (male and female mice). The mean values for the 68 h negative controls were 0.24% (male mice) and 0.30% (female mice). The mean values of micronuclei observed after treatment with 0.2 MTD were 0.25% (male mice) and 0.20% (female mice). Both values were within the range of the corresponding negative control as well as within the historical negative control data range. The mean values noted for the 0.5 MTD dose group were 0.24% (male mice) and 0.23% (female mice). Both values were within the range of the corresponding negative control as well as within the historical negative control data range. The dose group treated with 1 MTD (44 h treatment) showed mean values of 0.20% (male mice) and 0.23% (female mice). Both values were within the range of the corresponding negative control as well as within the historical negative control data range. The mean values observed for the 1 MTD 68 h treatment were 0.33% (male mice) and 0.24% (female mice). Both values were within the range of the corresponding negative control as well as within the historical negative control. No biologically relevant increase of micronuclei was found after treatment with the test item in any of the dose groups evaluated.
- Ratio of PCE/NCE (for Micronucleus assay):
The negative controls (44 h, 68 h) were within the range of the historical control data of the negative control (1.19 - 4.30). The mean values noted for the 44 h negative control were 2.12 (male mice) and 1.62 (female mice). The mean values detected for the 68 h negative control were 2.31 (male mice) and 3.08 (female mice). The animal group treated with 0.2 MTD showed mean values of the relative PCE of 2.09 (male mice) and 1.95 (female mice). The mean values observed in the male and in the female group were within the range of the historical negative control data. Moreover, in comparison to the corresponding negative control no statistically significant increases/decreases were observed. The dose groups which were treated with 0.5 MTD showed mean values of the relative PCE of 2.02 (male mice) and 2.15 (female mice). The mean values observed in the male and in the female group were within the range of the historical negative control data. Moreover, in comparison to the corresponding negative control no statistically significant increases/decreases were observed. The animals who received 1 MTD (44 h treatment) showed mean values of 2.18 (male mice) and 1.70 (female mice). The mean values observed in the male and in the female group were within the range of the historical negative control data. Moreover, in comparison to the corresponding negative control no statistically significant increases were observed. The animal group which was treated with 1 MTD (68 h treatment) showed mean values of the relative PCE of 2.22 (male mice) and 2.46 (female mice). The mean values observed in the male and in the female group were within the range of the historical negative control data. Moreover, in comparison to the corresponding control no statistically significant decreases were observed.
- Statistical evaluation:
The nonparametric Mann-Whitney Test was performed to verify the results. No statistically significant increases (p<0.05) of cells with micronuclei were noted in the dose groups of the test item evaluated.
Applicant's summary and conclusion
- Conclusions:
- In conclusion, it can be stated that during the study and under the experimental conditions reported, the test item Glucamide 810 RM did not induce structural and/or numerical chromosomal damage in the immature erythrocytes of the mouse.
Therefore, the test item Glucamide 810 RM is considered to be non-mutagenic with respect to clastogenicity and/or aneugenicity in the Mammalian Erythrocyte Micronucleus Test. - Executive summary:
In a NMRI mouse peripheral blood micronucleus assay, five male and female animals per dose group were treated orally with Glucamide 810 RMat doses of 2000, 1000 and 400 mg/kg bw. Peripheral blood cells were harvested at 44 h (all dose and control groups) and 68 h (negative control and 1 MTD group) post-treatment. The vehicle was Aqua ad iniectabilia. The animals received the test item once orally.
There were signs of toxicity during the study. The animals (5 male, 5 female mice) treated with a dose of 0.2 MTD (400 mg/kg bw) and 0.5 MTD (1000 mg/kg bw) showed no toxic effects after the treatment with the test item. The animals treated with 1 MTD showed mild to moderate signs of systemic toxicity such as reduction of spontaneous activity,catalepsis, constricted abdomen, piloerection and half eyelid closure. Glucamide 810 RM was tested at an adequate dose based on OECD 474. The positive control induced the appropriate response. There was no significant increase in the frequency of micronucleated polychromatic erythrocytes in peripheral blood cells after any treatment time.
This study is classified as acceptable. This study satisfies the requirement for Test Guideline OPPTS 870.5395; OECD 474 for in vivo cytogenetic mutagenicity data.
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