Registration Dossier

Administrative data

Workers - Hazard via inhalation route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
0.588 mg/m³
Most sensitive endpoint:
developmental toxicity / teratogenicity
Route of original study:
Oral
DNEL related information
DNEL derivation method:
ECHA REACH Guidance
Overall assessment factor (AF):
75
Dose descriptor starting point:
NOAEL
Value:
25 mg/kg bw/day
Modified dose descriptor starting point:
NOAEC
Value:
44.08 mg/m³
Explanation for the modification of the dose descriptor starting point:

Corrected NOAEC (inhalation) for workers:

= 25 mg/kg bw/day x 0.38x0.67

AF for dose response relationship:
1
Justification:
The dose response relationship is considered unremarkable, therefore no additional factor is used.
AF for differences in duration of exposure:
6
Justification:
The exposure duration of the OECD TG 422 study performed with the test item was up to 56 days for females and 29 days for males. In comparison to a subacute 28-day study the OECD TG 422 study provides additional information on fertility and developmental toxicity, which justifies the assessment factor of 4.
AF for interspecies differences (allometric scaling):
1
Justification:
No allometric scalling is applied for inhalation as the inhalative data is standardized with reference to the respiratory rates. Respiratory rates depend directly on caloric demand, therefore inhalative study results are already extrapolated to humans on the basis of metabolic rate scaling (=allometric scaling).
AF for other interspecies differences:
2.5
Justification:
The recommended AF for other interspecies differences is applied.
AF for the quality of the whole database:
1
Justification:
The OECD TG 422 toxicity study was conducted according to regulatory standards and was adequately reported. On this basis the quality of the database is not considered to contribute uncertainty and it is therefore not necessary to apply an additional factor.
Justification:
The OECD 422 is designed to be a screening study on Reproduction/Developmental Toxicity and does thus not provide in detail examinations on these endpoints. Even though additional parameters such as skeletal examinations were performed during the course of this study a conservative assessment factor of 2.5 reflects the remaining uncertainty based on the study design.
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Workers - Hazard via dermal route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
0.083 mg/kg bw/day
Most sensitive endpoint:
developmental toxicity / teratogenicity
Route of original study:
Oral
DNEL related information
DNEL derivation method:
ECHA REACH Guidance
Overall assessment factor (AF):
300
Dose descriptor starting point:
NOAEL
Value:
25 mg/kg bw/day
AF for dose response relationship:
1
Justification:
The dose response relationship is considered unremarkable, therefore no additional factor is used.
AF for differences in duration of exposure:
4
Justification:
The exposure duration of the OECD TG 422 study was up to 63 days for females and 29 days for males. In comparison to a subacute 28-day study the OECD TG 422 study provides additional information on fertility and developmental toxicity, which justifies the assessment factor of 4.
AF for interspecies differences (allometric scaling):
6
Justification:
The default allometric scaling factor for the differences between rats and humans is applied
AF for other interspecies differences:
2.5
Justification:
The recommended AF for other interspecies differences is applied.
AF for intraspecies differences:
5
Justification:
The default value for the relatively homogenous group "worker" is used
AF for the quality of the whole database:
1
Justification:
The OECD TG 422 toxicity study was conducted according to regulatory standards and was adequately reported. On this basis the quality of the database is not considered to contribute uncertainty and it is therefore not necessary to apply an additional factor.
Justification:
The OECD 422 is designed to be a screening study on Reproduction/Developmental Toxicity and does not provide in detail examinations on these endpoints. Even though additional parameters such as skeletal examinations were performed during the course of this study a conservative assessment factor of 2.5 reflects the remaining uncertainty based on the study design.
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified

Workers - Hazard for the eyes

Local effects

Hazard assessment conclusion:
no hazard identified

Additional information - workers

DNEL derivation for the test item is performed under consideration of the recommendations of ECHA, Guidance on information requirements and chemical safety assessment, Chapter R.8: Characterization of dose-response for human health (Version: 2.1, November 2012).

General Population - Hazard via inhalation route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
0.145 mg/m³
Most sensitive endpoint:
developmental toxicity / teratogenicity
Route of original study:
Oral
DNEL related information
DNEL derivation method:
ECHA REACH Guidance
Overall assessment factor (AF):
150
Dose descriptor starting point:
NOAEL
Value:
25 mg/kg bw/day
Modified dose descriptor starting point:
NOAEC
Value:
21.74 mg/m³
Explanation for the modification of the dose descriptor starting point:

Corrected NOAEC (inhalation) for general population:

= 25 mg/kg bw/day /1.15 m3/kg bw/day

AF for dose response relationship:
1
Justification:
The dose response relationship is considered unremarkable, therefore no additional factor is used.
AF for differences in duration of exposure:
6
Justification:
The exposure duration of the OECD TG 422 study was up to 63 days for females and 29 days for males. In comparison to a subacute 28-day study the OECD TG 422 study provides additional information on fertility and developmental toxicity, which justifies the assessment factor of 4.
AF for interspecies differences (allometric scaling):
1
Justification:
No allometric scalling is applied for inhalation as the inhalative data is standardized with reference to the respiratory rates. Respiratory rates depend directly on caloric demand, therefore inhalative study results are already extrapolated to humans on the basis of metabolic rate scaling (=allometric scaling).
AF for other interspecies differences:
2.5
Justification:
The recommended AF for other interspecies differences is applied.
AF for the quality of the whole database:
1
Justification:
The OECD TG 422 toxicity study was conducted according to regulatory standards and was adequately reported. On this basis the quality of the database is not considered to contribute uncertainty and it is therefore not necessary to apply an additional factor.
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

General Population - Hazard via dermal route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
0.042 mg/kg bw/day
Most sensitive endpoint:
developmental toxicity / teratogenicity
Route of original study:
Oral
DNEL related information
DNEL derivation method:
ECHA REACH Guidance
Overall assessment factor (AF):
600
Dose descriptor starting point:
NOAEL
Value:
25 mg/kg bw/day
AF for dose response relationship:
1
Justification:
The dose response relationship is considered unremarkable, therefore no additional factor is used.
AF for differences in duration of exposure:
6
Justification:
The exposure duration of the OECD TG 422 study was up to 63 days for females and 29 days for males. In comparison to a subacute 28-day study the OECD TG 422 study provides additional information on fertility and developmental toxicity, which justifies the assessment factor of 4.
AF for interspecies differences (allometric scaling):
4
Justification:
The default allometric scaling factor for the differences between rats and humans is applied.
AF for other interspecies differences:
2.5
Justification:
The recommended AF for other interspecies differences is applied.
AF for intraspecies differences:
10
Justification:
The default value for the relatively heterogeneous group "general population" is applied.
AF for the quality of the whole database:
1
Justification:
The OECD TG 422 toxicity study was conducted according to regulatory standards and was adequately reported. On this basis the quality of the database is not considered to contribute uncertainty and it is therefore not necessary to apply an additional factor.
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified

General Population - Hazard via oral route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
0.042 mg/kg bw/day
Most sensitive endpoint:
developmental toxicity / teratogenicity
Route of original study:
Oral
DNEL related information
DNEL derivation method:
ECHA REACH Guidance
Overall assessment factor (AF):
600
Dose descriptor starting point:
NOAEL
Value:
25 mg/kg bw/day
AF for dose response relationship:
1
Justification:
The dose response relationship is considered unremarkable, therefore no additional factor is used.
AF for differences in duration of exposure:
6
Justification:
The exposure duration of the OECD TG 422 study performed with the test item was up to 63 days for females and 29 days for males. In comparison to a subacute 28-day study the OECD TG 422 study provides additional information on fertility and developmental toxicity, which justifies the assessment factor of 4.
AF for interspecies differences (allometric scaling):
4
Justification:
The default allometric scaling factor for the differences between rats and humans is applied.
AF for other interspecies differences:
2.5
Justification:
The recommended AF for other interspecies differences is applied.
AF for intraspecies differences:
10
Justification:
The default value for the relatively heterogeneous group "general population" is used.
AF for the quality of the whole database:
1
Justification:
The OECD TG 422 toxicity study was conducted according to regulatory standards and was adequately reported. On this basis the quality of the database is not considered to contribute uncertainty and it is therefore not necessary to apply an additional factor.
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

General Population - Hazard for the eyes

Local effects

Hazard assessment conclusion:
no hazard identified

Additional information - General Population