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Toxicological information

Repeated dose toxicity: inhalation

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Administrative data

Endpoint:
repeated dose toxicity: inhalation
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

Data source

Reference
Reference Type:
other: Predicted data
Title:
[R]: 2.36E3 mg/L air; Estimation for study NOEL for CAS 2244-16-8
Author:
Sustainability Support Services (Europe) AB
Year:
2018
Bibliographic source:
OECD QSAR Toolbox version 3.3, 2018

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: Refer below principle
Principles of method if other than guideline:
Prediction is done using OECD QSAR Toolbox version 3.3, 2018
GLP compliance:
not specified
Limit test:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material: D-Carvone- IUPAC name: (5S)-2-methyl-5-(prop-1-en-2-yl)cyclohex-2-en-1-one- Molecular formula: C10H14O- Molecular weight: 150.22 g/mol- Substance type: Organic
Specific details on test material used for the study:
- Name of test material: D-Carvone- IUPAC name: (5S)-2-methyl-5-(prop-1-en-2-yl)cyclohex-2-en-1-one- Molecular formula: C10H14O- Molecular weight: 150.22 g/mol- Substance type: Organic

Test animals

Species:
rat
Strain:
Wistar
Details on species / strain selection:
No data
Sex:
male/female
Details on test animals and environmental conditions:
No data

Administration / exposure

Route of administration:
inhalation
Type of inhalation exposure:
not specified
Vehicle:
not specified
Remarks on MMAD:
No data
Details on inhalation exposure:
No data
Analytical verification of doses or concentrations:
not specified
Details on analytical verification of doses or concentrations:
No data
Duration of treatment / exposure:
90 days
Frequency of treatment:
6 hours per workday
Doses / concentrations
Remarks:
No data
No. of animals per sex per dose:
No data
Control animals:
not specified
Details on study design:
No data
Positive control:
No data

Examinations

Observations and examinations performed and frequency:
No data
Sacrifice and pathology:
No data
Other examinations:
No data
Statistics:
No data

Results and discussion

Results of examinations

Clinical signs:
not specified
Mortality:
not specified
Body weight and weight changes:
not specified
Food consumption and compound intake (if feeding study):
not specified
Food efficiency:
not specified
Water consumption and compound intake (if drinking water study):
not specified
Ophthalmological findings:
not specified
Haematological findings:
not specified
Clinical biochemistry findings:
not specified
Urinalysis findings:
not specified
Behaviour (functional findings):
not specified
Immunological findings:
not specified
Organ weight findings including organ / body weight ratios:
not specified
Gross pathological findings:
not specified
Neuropathological findings:
not specified
Histopathological findings: non-neoplastic:
not specified
Histopathological findings: neoplastic:
not specified
Other effects:
not specified

Effect levels

Dose descriptor:
NOAEC
Effect level:
2 364.871 mg/L air
Based on:
test mat.
Sex:
male/female
Basis for effect level:
other: No significant alterations were noted at the mentioned dose level

Target system / organ toxicity

Critical effects observed:
not specified

Any other information on results incl. tables

The prediction was based on dataset comprised from the following descriptors: "study NOEL"
Estimation method: Takes average value from the 8 nearest neighbours
Domain  logical expression:Result: In Domain

((((((("a" or "b" or "c" )  and ("d" and ( not "e") )  )  and ("f" and ( not "g") )  )  and "h" )  and "i" )  and "j" )  and ("k" and "l" )  )

Domain logical expression index: "a"

Referential boundary: The target chemical should be classified as Aliphatic Carbon [CH] OR Aliphatic Carbon [-CH2-] OR Aliphatic Carbon [-CH3] OR Carbonyl, aliphatic attach [-C(=O)-] OR Carbonyl, olefinic attach [-C(=O)-] OR Miscellaneous sulfide (=S) or oxide (=O) OR Olefinic carbon [=CH- or =C<] OR Olefinic carbon [=CH2] OR Tertiary Carbon by Organic functional groups (US EPA) ONLY

Domain logical expression index: "b"

Referential boundary: The target chemical should be classified as Allyl OR Cycloalkene OR Cycloketone OR Overlapping groups by Organic Functional groups (nested) ONLY

Domain logical expression index: "c"

Referential boundary: The target chemical should be classified as Alkene OR Allyl OR Cycloalkene OR Cycloketone by Organic Functional groups ONLY

Domain logical expression index: "d"

Referential boundary: The target chemical should be classified as No alert found by DNA binding by OASIS v.1.3

Domain logical expression index: "e"

Referential boundary: The target chemical should be classified as AN2 OR AN2 >> Nucleophilic addition to alpha, beta-unsaturated carbonyl compounds OR AN2 >> Nucleophilic addition to alpha, beta-unsaturated carbonyl compounds >> alpha, beta-Unsaturated Aldehydes OR AN2 >> Schiff base formation OR AN2 >> Schiff base formation >> alpha, beta-Unsaturated Aldehydes OR SN2 OR SN2 >> Alkylation, direct acting epoxides and related OR SN2 >> Alkylation, direct acting epoxides and related >> Epoxides and Aziridines by DNA binding by OASIS v.1.3

Domain logical expression index: "f"

Referential boundary: The target chemical should be classified as Michael Addition AND Michael Addition >> Michael addition on conjugated systems with electron withdrawing group AND Michael Addition >> Michael addition on conjugated systems with electron withdrawing group >> alpha,beta-Carbonyl compounds with polarized double bonds  by Protein binding by OASIS v1.3

Domain logical expression index: "g"

Referential boundary: The target chemical should be classified as Schiff base formation >> Schiff base formation with carbonyl compounds by Protein binding by OASIS v1.3

Domain logical expression index: "h"

Referential boundary: The target chemical should be classified as Alkene AND Allyl AND Cycloalkene AND Cycloketone by Organic Functional groups ONLY

Domain logical expression index: "i"

Referential boundary: The target chemical should be classified as Alkene AND Allyl AND Cycloalkene AND Cycloketone by Organic Functional groups ONLY

Domain logical expression index: "j"

Referential boundary: The target chemical should be classified as Alkene AND Allyl AND Cycloalkene AND Cycloketone by Organic Functional groups ONLY

Domain logical expression index: "k"

Parametric boundary:The target chemical should have a value of log Kow which is >= 1.27

Domain logical expression index: "l"

Parametric boundary:The target chemical should have a value of log Kow which is <= 3.78

Applicant's summary and conclusion

Conclusions:
The No Observed Adverse Effect Concentration (NOAEC) for d-carvone is predicted to be 2364.870605469 mg/L.
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, repeated dose toxicity was predicted for d-carvone. The study assumed the use of male and female Wistar rats in a 90 days toxicity study. Since no significant treatment related effects were observed at the mentioned dose level, hence the No Observed Adverse Effect Concentration (NOAEC) for d-carvone is predicted to be 2364.870605469 mg/L.

 

Based on this value it can be concluded that the substance is considered to not toxic as per the criteria mentioned in CLP regulation.