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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Toxicological information

Genetic toxicity: in vitro

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Administrative data

Endpoint:
in vitro gene mutation study in bacteria
Remarks:
Type of genotoxicity: gene mutation
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP Guideline Study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2000
Report date:
2000

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 471 (Bacterial Reverse Mutation Assay)
GLP compliance:
yes
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Chemical structure
Reference substance name:
(2E)-3-({3-carboxy-3-[(2-ethylhexyl)amino]propanoyl}(2-ethylhexyl)carbamoyl)prop-2-enoic acid; (2E)-3-[(2-ethylhexyl)carbamoyl]prop-2-enoic acid; (2E)-4-{2-[bis(2-hydroxyethyl)amino]ethoxy}-4-oxobut-2-enoic acid; 2-[(2-hydroxyethyl)amino]ethyl (2E)-3-[(2-ethylhexyl)carbamoyl]prop-2-enoate
EC Number:
939-488-3
Cas Number:
1471311-93-9
Molecular formula:
C18 H36 N2 O6
IUPAC Name:
(2E)-3-({3-carboxy-3-[(2-ethylhexyl)amino]propanoyl}(2-ethylhexyl)carbamoyl)prop-2-enoic acid; (2E)-3-[(2-ethylhexyl)carbamoyl]prop-2-enoic acid; (2E)-4-{2-[bis(2-hydroxyethyl)amino]ethoxy}-4-oxobut-2-enoic acid; 2-[(2-hydroxyethyl)amino]ethyl (2E)-3-[(2-ethylhexyl)carbamoyl]prop-2-enoate
Details on test material:
- Name of test material (as cited in study report): Korantin MAT
- Physical state: liquid
- Analytical purity: ca. 100 % (UVCB)

Method

Target gene:
HIS/TRP
Species / strainopen allclose all
Species / strain / cell type:
S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
Additional strain / cell type characteristics:
not applicable
Species / strain / cell type:
E. coli WP2 uvr A
Additional strain / cell type characteristics:
not applicable
Metabolic activation:
with and without
Metabolic activation system:
S-9 mix
Test concentrations with justification for top dose:
20 ug - 5000 ug/plate (SPT; all tester strains)
4 ug - 5000 ug/plate (PIT; Salmonella strains)
4 ug - 1000 ug/plate (PIT; E. coli WP2 uvrA )
Vehicle / solvent:
- Vehicle(s)/solvent(s) used: [water]
- Justification for choice of solvent/vehicle: water was chosen due to the good solubility of the test substance
Controls
Untreated negative controls:
yes
Negative solvent / vehicle controls:
yes
True negative controls:
no
Positive controls:
yes
Positive control substance:
other: with S-9 mix: 2-aminoanthracene (all strains); without S-9 mix: N-methyl-N'-nitro-N-nitrosoguanidine (TA 100, TA 1535), 4-nitro-o-phenylendiamine (TA 98), 9-aminoacridine (TA 1537), 4-nitroquinoline-N-oxide (E.coli WP2 uvrA)
Details on test system and experimental conditions:
METHOD OF APPLICATION: in agar (plate incorporation); preincubation

DETERMINATION OF CYTOTOXICITY
- Method: relative total growth
Evaluation criteria:
The test chemical is considered positive in this assay if the following criteria are met:
A dose-related and reproducible increase in the number of revertant colonies, i.e. about doubling of the spontaneous mutation rate in at least one tester strain either without S-9 mix or after adding a metabolizing system.
A test substance is generally considered nonmutagenic in this test if:
The number of revertants for all tester strains were within the historical negative control range under all experimental conditions in two experiments carried out independently of each other.
Statistics:
not applicable

Results and discussion

Test results
Species / strain:
S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
Metabolic activation:
with and without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
cytotoxicity
Vehicle controls validity:
valid
Untreated negative controls validity:
valid
Positive controls validity:
valid
Additional information on results:
ADDITIONAL INFORMATION ON CYTOTOXICITY:
No bacteriotoxic effect was observed in the standard plate test .
In the preincubation assay bacteriotoxicity (reduced background growth, decrease in the number of revertants and/or slight reduction in the titer) was observed depending on the strain and test conditions from about 500 - 2,500 ug/plate onward.
Remarks on result:
other: all strains/cell types tested
Remarks:
Migrated from field 'Test system'.

Applicant's summary and conclusion