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EC number: 215-549-3 | CAS number: 1330-80-9
- 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:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- Principles of method if other than guideline:
- Prediction is done using OECD QSAR Toolbox version 3.4 with logKow as the primary descriptor.
- GLP compliance:
- not specified
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): 2-hydroxypropyl octadec-9-enoate
- Molecular formula: C21H40O3
- Molecular weight : 340.544 g/mol
- Smiles notation : C(CC(OC[C@@H](C)O)=O)CCCCC\C=C\CCCCCCCC
- InChl : 1S/C21H40O3/c1-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-21(23)24-19-20(2)22/h10-11,20,22H,3-9,12-19H2,1-2H3/b11-10+
- Substance type:Organic
- Physical state:Liquid - 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: (% degradation) BOD
- Value:
- 68.16
- Sampling time:
- 28 d
- Remarks on result:
- other: Other details not known
- Details on results:
- Test substance undergoes 68.16 % degradation by BOD in 28 days.
- Validity criteria fulfilled:
- not specified
- Interpretation of results:
- readily biodegradable
- Conclusions:
- The test chemical 2-hydroxypropyl octadec-9-enoate was estimated to be readily biodegradable in water.
- Executive summary:
Biodegradability of 2-hydroxypropyl octadec-9-enoate (CAS no. 1330 -80 -9) is predicted using OECD QSAR toolbox version 3.4 with logKow as the primary descriptor. Test substance undergoes 68.16% degradation by BOD in 28 days. Thus, based on percentage degradation, the test chemical 2-hydroxypropyl octadec-9-enoate was estimated to be readily biodegradable in water.
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" or "e" )
and ("f"
and (
not "g")
)
)
and "h" )
and "i" )
and ("j"
and (
not "k")
)
)
and ("l"
and "m" )
)
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 Alcohol AND Alkene AND Allyl AND
Carboxylic acid ester by Organic Functional groups
Domain
logical expression index: "c"
Referential
boundary: The
target chemical should be classified as Alcohol AND Allyl AND Carboxylic
acid ester AND Overlapping groups by Organic Functional groups (nested)
Domain
logical expression index: "d"
Referential
boundary: The
target chemical should be classified as Aliphatic Carbon [CH] AND
Aliphatic Carbon [-CH2-] AND Aliphatic Carbon [-CH3] AND Carbonyl,
aliphatic attach [-C(=O)-] AND Ester, aliphatic attach [-C(=O)O] AND
Hydroxy, aliphatic attach [-OH] AND Miscellaneous sulfide (=S) or oxide
(=O) AND Olefinic carbon [=CH- or =C<] by Organic functional groups (US
EPA)
Domain
logical expression index: "e"
Referential
boundary: The
target chemical should be classified as Alcohol AND Carbonic acid
derivative AND Carboxylic acid derivative AND Carboxylic acid ester AND
Hydroxy compound AND Secondary alcohol by Organic functional groups,
Norbert Haider (checkmol)
Domain
logical expression index: "f"
Referential
boundary: The
target chemical should be classified as No alert found by DNA binding by
OECD
Domain
logical expression index: "g"
Referential
boundary: The
target chemical should be classified as Michael addition OR Michael
addition >> P450 Mediated Activation of Heterocyclic Ring Systems OR
Michael addition >> P450 Mediated Activation of Heterocyclic Ring
Systems >> Furans OR Michael addition >> P450 Mediated Activation to
Quinones and Quinone-type Chemicals OR Michael addition >> P450 Mediated
Activation to Quinones and Quinone-type Chemicals >> Arenes OR Michael
addition >> Polarised Alkenes-Michael addition OR Michael addition >>
Polarised Alkenes-Michael addition >> Alpha, beta- unsaturated esters OR
SN1 OR SN1 >> Carbenium Ion Formation OR SN1 >> Carbenium Ion Formation
>> Allyl benzenes OR SN1 >> Nitrenium Ion formation OR SN1 >> Nitrenium
Ion formation >> Aromatic azo OR SN1 >> Nitrenium Ion formation >>
Aromatic nitro OR SN1 >> Nitrenium Ion formation >> Tertiary aromatic
amine OR SN1 >> Nitrenium Ion formation >> Unsaturated heterocyclic azo
by DNA binding by OECD
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 Not bioavailable by Lipinski
Rule Oasis ONLY
Domain
logical expression index: "j"
Referential
boundary: The
target chemical should be classified as Not categorized by Repeated dose
(HESS)
Domain
logical expression index: "k"
Referential
boundary: The
target chemical should be classified as Phthalate esters (Testicular
toxicity) Rank C by Repeated dose (HESS)
Domain
logical expression index: "l"
Parametric
boundary:The
target chemical should have a value of Molecular weight which is >= 330
Da
Domain
logical expression index: "m"
Parametric
boundary:The
target chemical should have a value of Molecular weight which is <= 431
Da
Description of key information
Biodegradability of 2-hydroxypropyl octadec-9-enoate (CAS no. 1330 -80 -9) is predicted using OECD QSAR toolbox version 3.4 with logKow as the primary descriptor. Test substance undergoes 68.16% degradation by BOD in 28 days (2017). Thus, based on percentage degradation, the test chemical 2-hydroxypropyl octadec-9-enoate was estimated to be readily biodegradable in water.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
Variouspredicted data for the target compound 2 -hydroxypropyl octadec-9 -enoate (CAS No. 1330 -80 -9) and various supporting weight of evidence studies for its read across substances were reviewed for the biodegradation end point which are summarized as below:
In a prediction done by SSS (2017) using OECD QSAR toolbox version 3.4 with logKow as the primary descriptor, percentage biodegradability of test chemical 2-hydroxypropyl octadec-9-enoate(CAS No. 1330-80-9)was estimated.Test substance undergoes 68.16% degradation by BOD in 28 days. Thus, based on percentage degradation, the test chemical 2-hydroxypropyl octadec-9-enoate was estimated to be readily biodegradable in water.
In another prediction using the Estimation Programs Interface Suite (EPI suite, 2017), the biodegradation potential of the test compound 2-hydroxypropyl octadec-9-enoate(CAS No. 1330-80-9)in the presence of mixed populations of environmental microorganisms was estimated. 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 2 -hydroxypropyl octadec-9 -enoate is expected to be readily biodegradable.
In a supporting weight of evidence study from authoritative database (J-CHECK, 2017) for the read across chemical 2,3 -dihydroxypropyl octadec-9 -enoate (CAS no. 111-03-5), biodegradation experiment was conducted for 28 days for evaluating the percentage biodegradability of test substance 2,3 -dihydroxypropyl octadec-9 -enoate. Concentration of inoculum i.e, sludge used was 30 mg/l and initial test substance conc. used in the study was 100 mg/l, respectively. The percentage degradation of read across substance was determined to be 67 and 100% by BOD and HPLC parameter in 28 days. Thus, based on percentage degradation, 2,3 -dihydroxypropyl octadec-9 -enoate is considered to be readily biodegradable in nature.
Anotherweight of evidence ofbiodegradation studyfor the read across chemical methyl dodecanoate (CAS no. 111 -82 -0) was conducted for 28 days for evaluating the percentage biodegradability of read across substancemethyl dodecanoate (J-CHECK, 2017). Concentration of inoculum i.e, sludge used was 30 mg/l and initial test substance conc. used in the study was 100 mg/l, respectively. The percentage degradation of read across substance was determined to be 78 and 100% by BOD and GC parameter in 28 days. The test substance was partially hydrolyzed in water to form dodecanoic acid and methanol. Thus, based on percentage degradation, methyl dodecanoate is considered to be readily biodegradable in nature.
On the basis of above results for target chemical2-hydroxypropyl octadec-9-enoate(from OECD QSAR toolbox version 3.4 and EPI Suite, 2017) and for its read across substance (from authoritative database J-CHECK, 2017), it can be concluded that the test substance2-hydroxypropyl octadec-9-enoatecan be expected to be readily biodegradable in nature.
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