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EC number: 235-424-7 | CAS number: 12224-98-5
- 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
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: screening tests
- 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:
- The supporting QMRF report has been attached.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- Principles of method if other than guideline:
- The prediction was done by using OECD QSAR tool box v3.3
- GLP compliance:
- not specified
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): Xanthylium, 9-(2-(ethoxycarbonyl)phenyl)-3,6-bis(ethylamino)-2,7-dimethyl-, molybdatetungstatephosphate
- Molecular formula : C28H31N2O3.xUnspecified
- Molecular weight: 443.5639 g/mol
- Smiles notation: CCNc1cc2c(cc1C)c(c3cc(c(cc3[o+]2)NCC)C)c4ccccc4C(=O)OCC
- InChI: 1S/C28H31N2O3/c1-6-29-23-15-25-21(13-17(23)4)27(19-11-9-10-12-20(19)28(31)32-8-3)22-14-18(5)24(30-7-2)16-26(22)33-25/h9-16,29-30H,6-8H2,1-5H3/q+1
- Substance type: Organic
- Physical state: Solid - Oxygen conditions:
- aerobic
- Inoculum or test system:
- other: Microorganisms
- Duration of test (contact time):
- 28 d
- Parameter followed for biodegradation estimation:
- other: BOD
- Key result
- Parameter:
- other: % biodegradability by BOD
- Value:
- 6.167
- Sampling time:
- 28 d
- Remarks on result:
- other: other details not available
- Details on results:
- Percent biodegrdation of test chemical Xanthylium, 9-(2-(ethoxycarbonyl)phenyl)-3,6-bis(ethylamino)-2,7-dimethyl-, molybdatetungstatephosphate was determined to be 6.16 % by considering BOD as parameter in 28 days.
- Validity criteria fulfilled:
- not specified
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- Percent biodegrdation of test chemical Xanthylium, 9-(2-(ethoxycarbonyl)phenyl)-3,6-bis(ethylamino)-2,7-dimethyl-, molybdatetungstatephosphate was determined to be 6.16 % by considering BOD as parameter and microrganisms as inoculum in 28 days.
- Executive summary:
Biodegradability of test chemical Xanthylium, 9-(2-(ethoxycarbonyl)phenyl)-3,6-bis(ethylamino)-2,7-dimethyl-, molybdatetungstatephosphate (CAS no. 12224 -98 -5) was determined by using OECD QSAR tool box v3.3 and five closest red across chemical with log Kow as primary descriptor. Percent biodegrdation of test chemical Xanthylium, 9-(2-(ethoxycarbonyl)phenyl)-3,6-bis(ethylamino)-2,7-dimethyl-, molybdatetungstatephosphate was determined to be 6.16 % by considering BOD as parameter and microrganisms as inoculum in 28 days.
Reference
The
prediction was based on dataset comprised from the following
descriptors: BOD
Estimation method: Takes average value from the 5 nearest neighbours
Domain logical expression:Result: In Domain
((((((((("a"
or "b" or "c" or "d" )
and ("e"
and (
not "f")
)
)
and "g" )
and "h" )
and "i" )
and "j" )
and "k" )
and ("l"
and (
not "m")
)
)
and ("n"
and "o" )
)
Domain
logical expression index: "a"
Referential
boundary: The
target chemical should be classified as Esters (Chronic toxicity) by
US-EPA New Chemical Categories
Domain
logical expression index: "b"
Referential
boundary: The
target chemical should be classified as SN1 AND SN1 >> Nitrenium Ion
formation AND SN1 >> Nitrenium Ion formation >> Secondary aromatic amine
by DNA binding by OECD
Domain
logical expression index: "c"
Referential
boundary: The
target chemical should be classified as Esters by Acute aquatic toxicity
MOA by OASIS
Domain
logical expression index: "d"
Referential
boundary: The
target chemical should be classified as Esters by Aquatic toxicity
classification by ECOSAR
Domain
logical expression index: "e"
Referential
boundary: The
target chemical should be classified as No alert found by DNA binding by
OASIS v.1.3
Domain
logical expression index: "f"
Referential
boundary: The
target chemical should be classified as AN2 OR AN2 >> Michael-type
addition, quinoid structures OR AN2 >> Michael-type addition, quinoid
structures >> Quinones OR AN2 >> Michael-type addition on alpha,
beta-unsaturated carbonyl compounds OR AN2 >> Michael-type addition on
alpha, beta-unsaturated carbonyl compounds >> Four- and Five-Membered
Lactones OR AN2 >> Schiff base formation OR AN2 >> Schiff base formation
>> Polarized Haloalkene Derivatives OR AN2 >> Shiff base formation after
aldehyde release OR AN2 >> Shiff base formation after aldehyde release
>> Specific Acetate Esters OR AN2 >> Thioacylation via nucleophilic
addition after cysteine-mediated thioketene formation OR AN2 >>
Thioacylation via nucleophilic addition after cysteine-mediated
thioketene formation >> Haloalkenes with Electron-Withdrawing Groups OR
AN2 >> Thioacylation via nucleophilic addition after cysteine-mediated
thioketene formation >> Polarized Haloalkene Derivatives OR Non-covalent
interaction OR Non-covalent interaction >> DNA intercalation OR
Non-covalent interaction >> DNA intercalation >> Coumarins OR
Non-covalent interaction >> DNA intercalation >> DNA Intercalators with
Carboxamide Side Chain OR Non-covalent interaction >> DNA intercalation
>> Quinones OR Radical OR Radical >> Generation of reactive oxygen
species OR Radical >> Generation of reactive oxygen species >> Thiols OR
Radical >> Generation of ROS by glutathione depletion (indirect) OR
Radical >> Generation of ROS by glutathione depletion (indirect) >>
Haloalkanes Containing Heteroatom OR Radical >> Radical mechanism via
ROS formation (indirect) OR Radical >> Radical mechanism via ROS
formation (indirect) >> Coumarins OR Radical >> Radical mechanism via
ROS formation (indirect) >> Nitro Azoarenes OR Radical >> Radical
mechanism via ROS formation (indirect) >> Quinones OR SN1 OR SN1 >>
Nucleophilic attack after carbenium ion formation OR SN1 >> Nucleophilic
attack after carbenium ion formation >> Specific Acetate Esters OR SN1
>> Nucleophilic attack after reduction and nitrenium ion formation OR
SN1 >> Nucleophilic attack after reduction and nitrenium ion formation
>> Nitro Azoarenes OR SN2 OR SN2 >> Acylation OR SN2 >> Acylation >>
Specific Acetate Esters OR SN2 >> Alkylation, direct acting epoxides and
related after P450-mediated metabolic activation OR SN2 >> Alkylation,
direct acting epoxides and related after P450-mediated metabolic
activation >> Haloalkenes with Electron-Withdrawing Groups OR SN2 >>
Alkylation, nucleophilic substitution at sp3-carbon atom OR SN2 >>
Alkylation, nucleophilic substitution at sp3-carbon atom >> Sulfonates
and Sulfates OR SN2 >> Alkylation, ring opening SN2 reaction OR SN2 >>
Alkylation, ring opening SN2 reaction >> Four- and Five-Membered
Lactones OR SN2 >> Direct acting epoxides formed after metabolic
activation OR SN2 >> Direct acting epoxides formed after metabolic
activation >> Coumarins OR SN2 >> DNA alkylation OR SN2 >> DNA
alkylation >> Alkylphosphates, Alkylthiophosphates and Alkylphosphonates
OR SN2 >> DNA alkylation >> Vicinal Dihaloalkanes OR SN2 >> Internal SN2
reaction with aziridinium and/or cyclic sulfonium ion formation
(enzymatic) OR SN2 >> Internal SN2 reaction with aziridinium and/or
cyclic sulfonium ion formation (enzymatic) >> Vicinal Dihaloalkanes OR
SN2 >> Nucleophilic substitution at sp3 Carbon atom OR SN2 >>
Nucleophilic substitution at sp3 Carbon atom >> Haloalkanes Containing
Heteroatom OR SN2 >> Nucleophilic substitution at sp3 Carbon atom >>
Specific Acetate Esters OR SN2 >> Ring opening SN2 reaction OR SN2 >>
Ring opening SN2 reaction >> Sultones OR SN2 >> SN2 at sp3 and activated
sp2 carbon atom OR SN2 >> SN2 at sp3 and activated sp2 carbon atom >>
Polarized Haloalkene Derivatives by DNA binding by OASIS v.1.3
Domain
logical expression index: "g"
Referential
boundary: The
target chemical should be classified as days - weeks by Biodeg primary
(Biowin 4) ONLY
Domain
logical expression index: "h"
Referential
boundary: The
target chemical should be classified as Biodegrades Fast by Biodeg
probability (Biowin 1) ONLY
Domain
logical expression index: "i"
Referential
boundary: The
target chemical should be classified as Biodegrades Fast by Biodeg
probability (Biowin 2) ONLY
Domain
logical expression index: "j"
Referential
boundary: The
target chemical should be classified as Does NOT Biodegrade Fast by
Biodeg probability (Biowin 5) ONLY
Domain
logical expression index: "k"
Referential
boundary: The
target chemical should be classified as Does NOT Biodegrade Fast by
Biodeg probability (Biowin 7) ONLY
Domain
logical expression index: "l"
Referential
boundary: The
target chemical should be classified as Alkyl arenes AND Aromatic amine
AND Aryl AND Carboxylic acid ester AND Overlapping groups AND Xanthene
by Organic Functional groups (nested)
Domain
logical expression index: "m"
Referential
boundary: The
target chemical should be classified as Benzyl by Organic Functional
groups (nested)
Domain
logical expression index: "n"
Parametric
boundary:The
target chemical should have a value of Molecular weight which is >= 234
Da
Domain
logical expression index: "o"
Parametric
boundary:The
target chemical should have a value of Molecular weight which is <= 453
Da
Description of key information
Biodegradability of test chemical Xanthylium, 9-(2-(ethoxycarbonyl)phenyl)-3,6-bis(ethylamino)-2,7-dimethyl-, molybdatetungstatephosphate (CAS no. 12224 -98 -5) was determined by using OECD QSAR tool box v3.3 and five closest red across chemical with log Kow as primary descriptor. Percent biodegrdation of test chemical Xanthylium, 9-(2-(ethoxycarbonyl)phenyl)-3,6-bis(ethylamino)-2,7-dimethyl-, molybdatetungstatephosphate was determined to be 6.16 % by considering BOD as parameter and microrganisms as inoculum in 28 days.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
Two predicted data study for target chemical Xanthylium, 9-(2-(ethoxycarbonyl)phenyl)-3,6-bis(ethylamino)-2,7-dimethyl-, molybdatetungstatephosphate (CAS no. 12224-98-5) and Experimental studies for its structurally similar read across chemicals have been conducted and their results are summarized below for biodegradation in water endpoint.
In first weight of evidence study the biodegradability of test chemical Xanthylium, 9-(2-(ethoxycarbonyl)phenyl)-3,6-bis(ethylamino)-2,7-dimethyl-, molybdatetungstatephosphate (CAS no. 12224 -98 -5) was determined by using OECD QSAR tool box v3.3 and five closest red across chemical with log Kow as primary descriptor. Percent biodegrdation of test chemical Xanthylium, 9-(2-(ethoxycarbonyl)phenyl)-3,6-bis(ethylamino)-2,7-dimethyl-, molybdatetungstatephosphate was determined to be 6.16 % by considering BOD as parameter and microorganisms as inoculums in 28 days.
Another predicted data study was done by using Estimation Programs Interface Suite (EPI suite, 2017) to estimate the biodegradation potential of the test compound Xanthylium, 9 -(2 -(ethoxycarbonyl)phenyl)-3,6 -bis(ethylamino)-2,7 -dimethyl-, molybdatetungstatephosphate (CAS no. 12224 -98 -5) in the presence of mixed populations of environmental microorganisms. The biodegradability of the substance was calculated using seven different models such as Linear Model, Non-Linear Model, Ultimate Biodegradation Timeframe, Primary Biodegradation Timeframe, MITI Linear Model, MITI Non-Linear Model and Anaerobic Model (called as Biowin 1-7, respectively) of the BIOWIN v4.10 software. The results indicate that chemical Xanthylium, 9 -(2 -(ethoxycarbonyl)phenyl)-3,6 -bis(ethylamino)-2,7 -dimethyl-, molybdatetungstatephosphate is expected to be not readily biodegradable.
Next weight of evidence study was experimental study done from authoritative database (J Check, 2017) for read across chemical [9-(2-carboxyphenyl)-6-(diethylamino) xanthen-3-ylidene]-diethylazanium; chloride (CAS no. 81-88-9) in this study the read across chemical was subjected to biodegradation test by taking sludge as inoculums at 30 mg/L concentration. Biodegradation was analysed by using BOD, TOC and UV vis parameters. The initial concentration of read across chemical was 100 mg/L. After 4 weeks (28 days)read across chemical [9-(2-carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethylazanium;chloride showed 0 % biodegradability by BOD parameter 2.0 % biodegradation by TOC parameter and 7 % biodegradation by UV Vis parameter and activated sludge as inoculums in 28 days so it is concluded that read across chemical [9-(2-carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethylazanium;chloride is not readily biodegradable.
Next study was also experimental study done from Science of the Total Environment 533 (2015) 446–453 for structurally similar read across chemical Uranine in this study a combination of two biodegradation tests (Closed Bottle test and Manometric Respiratory test, OECDs 301 D, F) was carried out to investigate the biodegradability of the Uranine.
The Manometric Respiratory tests works with higher bacterial density (5–10×106CFUs/mL) and diversity as the Closed Bottle test thus increasing the probability for biodegradation. This test was performed according to the OECD guidelines (OECD, 1992) in the dark at room temperature (20 ± 1 °C) under gentle stirring. CO2 production as the parameter of the endpoint biodegradation was measured indirectly by the OxiTop OC110-system.
The concentration of standard solution for uranine was 16.7 mg/L, corresponding to the theoretical oxygen demand ThOD of 30 mg/L. Inoculum was derived from the municipal sewage treatment plant (Lüneburg, Germany). Aliquots (measuring) of 80ml of inoculum were added to 1 L of mineral medium. The test consisted of four different series: (i) a blank series (containing only the mineral medium and inoculum), (ii) quality control (containing readily biodegradable sodium acetate as the only relevant carbon source apart from the inoculum), (iii) a test series (containing the target compound) and (iv) toxicity control (containing target compound and sodium acetate as carbon source). The amount of sodium acetate for each series corresponded to ThOD of 5 mg/L. A compound is qualified as “ready biodegradable” when 60% of ThOD expressed as percentage of oxygen consumption is consumed within a period of 10 days after the oxygen uptake reached 10% of ThOD. Samples from the beginning (day 0) and the end of the test (day 28) were collected and stored at −20 °C until analysis with HPLC-FLD and LC–M/MS.
No toxic effects on bacteria were observed in the toxicity control as well as no degradation was observed in the sterile control. The measurements with HPLC-FLD confirmed that no elimination of uranine occurred during the Manometric Respiratory Test. Only 0.1% degradation of read across substance Uranine was observed. The reason for the negative values in Manometric Respiratory test might be interpreted as high degradation in the blank control and should be considered could be due to some background in the blanks and can be considered as 0% degradation of the read across substance.Based on the results obtained in Manometric Respiratory test method, Uranine is expected to be not readily biodegradable.
And Closed Bottle Test was performed according to the guidelines of the Organization for Economic Co-operation and Development OECD 301D. This test is characterized by low bacteria density (102–105 colony forming units (CFUs)/mL), low nutrient content, and constant temperature (20 ± 1 °C) and it was kept in the dark. The average biodegradation value after 28 days for Uranine monitored by measurement of the oxygen concentration was 7.6. Based on the results obtained, Uranine is expected to be not readily biodegradable.
On the basis of all the studies mentioned above for target chemical Xanthylium, 9-(2-(ethoxycarbonyl)phenyl)-3,6-bis(ethylamino)-2,7-dimethyl-, molybdatetungstatephosphate and experimental studies for its read across chemicals it is concluded that target chemical is expected to be not readily biodegradable.
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