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EC number: 228-291-1 | CAS number: 6219-71-2
- 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
Endpoint summary
Administrative data
Key value for chemical safety assessment
Genetic toxicity in vitro
Description of key information
Based on the prediction done using the OECD QSAR toolbox version 3.3 with log kow as the primary descriptor and considering the five closest read across substances, gene mutation was predicted for 2-chlorobenzene-1,4-diammonium sulphate. The study assumed the use of Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 with S9 metabolic activation system. 2-chlorobenzene-1,4-diammonium sulphate was predicted to not induce gene mutation in Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 in the presence of S9 metabolic activation system and hence, according to the prediction made, it is not likely to classify as a gene mutant in vitro.
Based on the predicted result it can be concluded that the substance is considered to not toxic as per the criteria mentioned in CLP regulation.
Link to relevant study records
- Endpoint:
- in vitro gene mutation study in bacteria
- Remarks:
- Type of genotoxicity: gene mutation
- Type of information:
- (Q)SAR
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification
- Justification for type of information:
- Data is from OECD QSAR Toolbox version 3.3 and the supporting QMRF report has been attached
- Qualifier:
- according to guideline
- Guideline:
- other: Refer below principle
- Principles of method if other than guideline:
- Prediction is done using OECD QSAR Toolbox version 3.3, 2017
- GLP compliance:
- not specified
- Type of assay:
- bacterial reverse mutation assay
- Specific details on test material used for the study:
- - Name of test material : 2-Chloro-p-phenylenediamine SO4
- Molecular formula : C6H7ClN2xH2O4S
- Molecular weight : 240.6661 g/mol
- Substance type: Organic
- Physical state: No data
- Impurities (identity and concentrations): No data - Target gene:
- Histidine
- Species / strain / cell type:
- S. typhimurium TA 1535, TA 1537, TA 98, TA 100 and TA 102
- Details on mammalian cell type (if applicable):
- Not applicable
- Additional strain / cell type characteristics:
- not specified
- Cytokinesis block (if used):
- No data
- Metabolic activation:
- with
- Metabolic activation system:
- S9 metabolic activation system
- Test concentrations with justification for top dose:
- No data
- Vehicle / solvent:
- No data
- Untreated negative controls:
- not specified
- Negative solvent / vehicle controls:
- not specified
- True negative controls:
- not specified
- Positive controls:
- not specified
- Positive control substance:
- not specified
- Details on test system and experimental conditions:
- No data
- Rationale for test conditions:
- No data
- Evaluation criteria:
- Prediction is done considering a dose dependent increase in the number of revertants/plate
- Statistics:
- No data
- Species / strain:
- S. typhimurium, other: TA 1535, TA 1537, TA 98, TA 100 and TA 102
- Metabolic activation:
- with
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- not specified
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- valid
- Positive controls validity:
- valid
- Additional information on results:
- No data
- Remarks on result:
- no mutagenic potential (based on QSAR/QSPR prediction)
- Conclusions:
- 2-chlorobenzene-1,4-diammonium sulphate was predicted to not induce gene mutation in Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 in the presence of S9 metabolic activation system and hence, according to the prediction made, it is not likely to classify as a gene mutant in vitro.
- Executive summary:
Based on the prediction done using the OECD QSAR toolbox version 3.3 with log kow as the primary descriptor and considering the five closest read across substances, gene mutation was predicted for 2-chlorobenzene-1,4-diammonium sulphate. The study assumed the use of Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 with S9 metabolic activation system. 2-chlorobenzene-1,4-diammonium sulphate was predicted to not induce gene mutation in Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 in the presence of S9 metabolic activation system and hence, according to the prediction made, it is not likely to classify as a gene mutant in vitro.
Based on the predicted result it can be concluded that the substance is considered to not toxic as per the criteria mentioned in CLP regulation.
Reference
The
prediction was based on dataset comprised from the following
descriptors: "Gene mutation"
Estimation method: Takes highest mode value from the 6 nearest neighbours
Domain logical expression:Result: In Domain
((((((((((("a"
or "b" or "c" or "d" or "e" )
and "f" )
and "g" )
and ("h"
and (
not "i")
)
)
and ("j"
and (
not "k")
)
)
and "l" )
and ("m"
and (
not "n")
)
)
and ("o"
and (
not "p")
)
)
and ("q"
and (
not "r")
)
)
and ("s"
and (
not "t")
)
)
and ("u"
and "v" )
)
Domain
logical expression index: "a"
Referential
boundary: The
target chemical should be classified as Anilines (Acute toxicity) by
US-EPA New Chemical Categories
Domain
logical expression index: "b"
Referential
boundary: The
target chemical should be classified as Radical OR Radical >> Radical
mechanism via ROS formation (indirect) OR Radical >> Radical mechanism
via ROS formation (indirect) >> Single-Ring Substituted Primary Aromatic
Amines OR SN1 OR SN1 >> Nucleophilic attack after metabolic nitrenium
ion formation OR SN1 >> Nucleophilic attack after metabolic nitrenium
ion formation >> Single-Ring Substituted Primary Aromatic Amines by DNA
binding by OASIS v.1.3 ONLY
Domain
logical expression index: "c"
Referential
boundary: The
target chemical should be classified as SN1 OR SN1 >> Nitrenium Ion
formation OR SN1 >> Nitrenium Ion formation >> Primary aromatic amine by
DNA binding by OECD ONLY
Domain
logical expression index: "d"
Referential
boundary: The
target chemical should be classified as Weak binder, NH2 group by
Estrogen Receptor Binding
Domain
logical expression index: "e"
Referential
boundary: The
target chemical should be classified as Anilines (amino-para) OR
Anilines (Unhindered) OR Inorganic Compound by Aquatic toxicity
classification by ECOSAR ONLY
Domain
logical expression index: "f"
Referential
boundary: The
target chemical should be classified as No alert found AND Radical AND
Radical >> Radical mechanism via ROS formation (indirect) AND Radical >>
Radical mechanism via ROS formation (indirect) >> Single-Ring
Substituted Primary Aromatic Amines AND SN1 AND SN1 >> Nucleophilic
attack after metabolic nitrenium ion formation AND SN1 >> Nucleophilic
attack after metabolic nitrenium ion formation >> Single-Ring
Substituted Primary Aromatic Amines by DNA binding by OASIS v.1.3 ONLY
Domain
logical expression index: "g"
Referential
boundary: The
target chemical should be classified as No alert found AND SN1 AND SN1
>> Nitrenium Ion formation AND SN1 >> Nitrenium Ion formation >> Primary
aromatic amine by DNA binding by OECD ONLY
Domain
logical expression index: "h"
Referential
boundary: The
target chemical should be classified as Non binder, non cyclic structure
AND Weak binder, NH2 group by Estrogen Receptor Binding
Domain
logical expression index: "i"
Referential
boundary: The
target chemical should be classified as Moderate binder, NH2 group OR
Moderate binder, OH grooup OR Non binder, impaired OH or NH2 group OR
Non binder, MW>500 OR Strong binder, NH2 group OR Strong binder, OH
group OR Weak binder, OH group by Estrogen Receptor Binding
Domain
logical expression index: "j"
Referential
boundary: The
target chemical should be classified as No alert found by Protein
binding by OASIS v1.3
Domain
logical expression index: "k"
Referential
boundary: The
target chemical should be classified as Acylation OR Acylation >> Ester
aminolysis OR Acylation >> Ester aminolysis >> Amides by Protein binding
by OASIS v1.3
Domain
logical expression index: "l"
Referential
boundary: The
target chemical should be classified as High (Class III) AND Low (Class
I) by Toxic hazard classification by Cramer (original) ONLY
Domain
logical expression index: "m"
Referential
boundary: The
target chemical should be classified as No alert found by Protein
binding alerts for Chromosomal aberration by OASIS v1.1
Domain
logical expression index: "n"
Referential
boundary: The
target chemical should be classified as AN2 OR AN2 >> Michael addition
to the quinoid type structures OR AN2 >> Michael addition to the quinoid
type structures >> Substituted Anilines by Protein binding alerts for
Chromosomal aberration by OASIS v1.1
Domain
logical expression index: "o"
Referential
boundary: The
target chemical should be classified as Anilines (Hemolytic anemia with
methemoglobinemia) Rank A AND Anilines (Hepatotoxicity) Rank C AND Not
categorized by Repeated dose (HESS)
Domain
logical expression index: "p"
Referential
boundary: The
target chemical should be classified as Chlorphentermine
(Hepatotoxicity) Alert by Repeated dose (HESS)
Domain
logical expression index: "q"
Referential
boundary: The
target chemical should be classified as Anilines (Hemolytic anemia with
methemoglobinemia) Rank A AND Anilines (Hepatotoxicity) Rank C AND Not
categorized by Repeated dose (HESS)
Domain
logical expression index: "r"
Referential
boundary: The
target chemical should be classified as Thiocarbamates/Sulfides
(Hepatotoxicity) No rank by Repeated dose (HESS)
Domain
logical expression index: "s"
Referential
boundary: The
target chemical should be classified as Aryl halide AND No functional
group found AND Overlapping groups AND Precursors quinoid compounds by
Organic Functional groups (nested)
Domain
logical expression index: "t"
Referential
boundary: The
target chemical should be classified as Aliphatic Amine, primary OR
Alkyl arenes OR Alkyl halide OR Aminoaniline, meta OR Aniline OR
Benzothiazole/ Benzoisothiazole OR Biphenyl OR Carboxylic acid OR
Cycloalkane OR Ether by Organic Functional groups (nested)
Domain
logical expression index: "u"
Parametric
boundary:The
target chemical should have a value of log Kow which is >= -1.38
Domain
logical expression index: "v"
Parametric
boundary:The
target chemical should have a value of log Kow which is <= 0.852
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed (negative)
Genetic toxicity in vivo
Endpoint conclusion
- Endpoint conclusion:
- no study available
Additional information
Gene mutation in vitro:
Prediction model based estimation and data from read across chemicals have been reviewed to determine the mutagenic nature of
2-chlorobenzene-1,4-diammonium sulphate. The studies are as mentioned below:
Based on the prediction done using the OECD QSAR toolbox version 3.3 with log kow as the primary descriptor and considering the five closest read across substances, gene mutation was predicted for 2-chlorobenzene-1,4-diammonium sulphate. The study assumed the use of Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 with S9 metabolic activation system. 2-chlorobenzene-1,4-diammonium sulphate was predicted to not induce gene mutation in Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 in the presence of S9 metabolic activation system and hence, according to the prediction made, it is not likely to classify as a gene mutant in vitro.
Based on the prediction done using the OECD QSAR toolbox version 3.3 with log kow as the primary descriptor and considering the five closest read across substances, chromosomal aberration was predicted for 2-Chloro-p-phenylenediamine SO4. The study assumed the use of Chinese hamster ovary (CHO) cell line with and without S9 metabolic activation system. 2-Chloro-p-phenylenediamine SO4 was predicted to not induce chromosomal aberrations in Chinese hamster ovary (CHO) cell line in the presence and absence of S9 metabolic activation system and hence, according to the prediction made, it is not likely to classify as a gene mutant in vitro.
The predicted data is further supported by the data from read across chemicals as mentioned below:
Gentile et al (Mutation Research, 1987) performed gene mutation assay to evaluate the mutagenic nature of structurally and functionally similar read across chemical p-phenylenediamine (RA CAS no 106 -50 -3; IUPAC name: 1,4-diaminobenzene). Plate incorporation and preincubation assay were performed using S. typhimurium TA98 and TA100 in the presence and absence of S9 metabolic activation system. The chemical was dissolved in DMSO at dose levels of 0, 10, 100, 1000 or 10000µg/plate. Concurrent solvent and positive controls were run concurrently for each strain in each test. The plates were observed for a dose dependent increase in the number of revertants/plate. p-phenylenediamine did not induce gene mutation in the S. typhimurium TA98 and TA100 in the presence and absence of S9 metabolic activation system and hence the chemical is negative for mutation in vitro.
In a study for another structurally similar read across chemical by Zeiger et al (Environmental and Molecular Mutagenesis, 1988), m-Amino benzenesulfonic acid (RA CAS no 121 -47 -1; IUPAC name: m-Amino benzenesulfonic acid) was studied for its ability to induce mutations in strains of Salmonella typhimurium. The test compound was dissolved in DMSO and was tested at concentration of 0, 33, 100, 333, 1000 or 3333 µg/plate using Salmonella typhimurium TA100, TA1535, TA97 and TA98 in the presence and absence of 10 % and 30 % rat and hamster liver S9 metabolic activation system. Preincubation assay was performed with a preicubation for 20 mins. The plates were observed for histidine independence after 2 days incubation period. Concurrent solvent and positive controls were included in the study. m-Amino benzene sulfonic acidis not mutagenic to theSalmonella typhimurium TA100, TA1535, TA97 and TA98 in the presence and absence of rat and hamster liver S9 metabolic activation system and hence it is not likely to classify as a gene mutant in vitro.
Based on the data available for the target chemical and its read across, 2-chlorobenzene-1,4-diammonium sulphate does not exhibit gene mutation in vitro. Hence the test chemical is not likely to classify as a gene mutant in vitro as per the criteria mentioned in CLP regulation.
Justification for classification or non-classification
Based on the data available for the target chemical and its read across, 2-chlorobenzene-1,4-diammonium sulphate (CAS no 6219 -71 -2) does not exhibit gene mutation in vitro. Hence the test chemical is not likely to classify as a gene mutant in vitro as per the criteria mentioned in CLP regulation.
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