Registration Dossier

Administrative data

Workers - Hazard via inhalation route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
16.4 mg/m³
Most sensitive endpoint:
repeated dose toxicity
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:
1 000 mg/kg bw/day
Modified dose descriptor starting point:
NOAEC
Value:
1 230 mg/m³
Explanation for the modification of the dose descriptor starting point:

Default (DNEL generation plugin)

AF for dose response relationship:
1
Justification:
Default (DNEL generation plugin)
AF for differences in duration of exposure:
6
Justification:
Default (DNEL generation plugin)
AF for interspecies differences (allometric scaling):
1
Justification:
Default (DNEL generation plugin)
AF for other interspecies differences:
2.5
Justification:
Default (DNEL generation plugin)
AF for intraspecies differences:
5
Justification:
Default (DNEL generation plugin)
AF for the quality of the whole database:
1
Justification:
Default (DNEL generation plugin)
AF for remaining uncertainties:
1
Justification:
no remaining uncertainties
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:
4.67 mg/kg bw/day
Most sensitive endpoint:
repeated dose toxicity
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:
1 000 mg/kg bw/day
Modified dose descriptor starting point:
NOAEL
Value:
1 400 mg/kg bw/day
Explanation for the modification of the dose descriptor starting point:

Default (DNEL generation plugin)

AF for dose response relationship:
1
Justification:
Default (DNEL generation plugin)
AF for differences in duration of exposure:
6
Justification:
Default (DNEL generation plugin)
AF for interspecies differences (allometric scaling):
4
Justification:
Default (DNEL generation plugin)
AF for other interspecies differences:
2.5
Justification:
Default (DNEL generation plugin)
AF for intraspecies differences:
5
Justification:
Default (DNEL generation plugin)
AF for the quality of the whole database:
1
Justification:
Default (DNEL generation plugin)
AF for remaining uncertainties:
1
Justification:
no remaining uncertainties
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
153 µg/cm²
Most sensitive endpoint:
sensitisation (skin)
DNEL related information
DNEL derivation method:
other: generally accepted sensitisation assessment factors
Overall assessment factor (AF):
50
Dose descriptor:
other: NESIL [µg/cm²] =7650
Acute/short term exposure
Hazard assessment conclusion:
medium hazard (no threshold derived)
Most sensitive endpoint:
sensitisation (skin)

Workers - Hazard for the eyes

Local effects

Hazard assessment conclusion:
medium hazard (no threshold derived)

Additional information - workers

Local DNEL

Based on the No Expected Sensitization Induction Level (NESIL) of 7650 µg/cm² obtained from the LLNA, a local DNEL of 153 µg/cm² has been derived for workers.

Type of assessment factor

Explanation

SAF for worker

Inter-individual variability

The uncertainty factor (SAF: sensitisation assessment factor) for inter-individual variability allows for possible variations in the sensitivity of individuals within the human population.

Default AF for workers (ECHA)

5

Inter-species variability

Inter-species variability is not taken into account in this approach for quantitative risk assessment of contact allergens when extrapolating from the experimental situation to the real life exposure scenarios. This is on the basis that the LLNA data have been correlated with the human data, which is typically not the case in general systemic toxicology.

1

Matrix Effects

Differences between the matrix used under experimental conditions and real life

Exposure, especially the possible presence of irritating substances and penetration enhancers.

The substance itself is not irritating to skin, but might be used in formulations, where irritants are present, which could increase dermal penetration.

DMF, which is a penetration enhancer, was used as vehicle.

3.16 (=sqrt(10))

 

Use considerations

Site of contact (regional differences in absorption)

Barrier integrity (e.g. dermatitis)

Occlusion (increased dermal penetration)

3.16 (=sqrt(10))

 

 

 

General Population - Hazard via inhalation route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
2.47 mg/m³
Most sensitive endpoint:
repeated dose toxicity
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:
1 000 mg/kg bw/day
Modified dose descriptor starting point:
NOAEC
Value:
370 mg/m³
Explanation for the modification of the dose descriptor starting point:

Default (DNEL generation plugin)

AF for dose response relationship:
1
Justification:
Default (DNEL generation plugin)
AF for differences in duration of exposure:
6
Justification:
Default (DNEL generation plugin)
AF for interspecies differences (allometric scaling):
1
Justification:
Default (DNEL generation plugin)
AF for other interspecies differences:
2.5
Justification:
Default (DNEL generation plugin)
AF for intraspecies differences:
10
Justification:
Default (DNEL generation plugin)
AF for the quality of the whole database:
1
Justification:
Default (DNEL generation plugin)
AF for remaining uncertainties:
1
Justification:
no remaining uncertainties
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:
1.67 mg/kg bw/day
Most sensitive endpoint:
repeated dose toxicity
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:
1 000 mg/kg bw/day
Modified dose descriptor starting point:
NOAEL
Value:
1 000 mg/kg bw/day
Explanation for the modification of the dose descriptor starting point:

Default (DNEL generation plugin)

AF for dose response relationship:
1
Justification:
Default (DNEL generation plugin)
AF for differences in duration of exposure:
6
Justification:
Default (DNEL generation plugin)
AF for interspecies differences (allometric scaling):
4
Justification:
Default (DNEL generation plugin)
AF for other interspecies differences:
2.5
Justification:
Default (DNEL generation plugin)
AF for intraspecies differences:
10
Justification:
Default (DNEL generation plugin)
AF for the quality of the whole database:
1
Justification:
Default (DNEL generation plugin)
AF for remaining uncertainties:
1
Justification:
no remaining uncertainties
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
medium hazard (no threshold derived)
Most sensitive endpoint:
sensitisation (skin)
Acute/short term exposure
Hazard assessment conclusion:
medium hazard (no threshold derived)
Most sensitive endpoint:
sensitisation (skin)

General Population - Hazard via oral route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
1.67 mg/kg bw/day
Most sensitive endpoint:
repeated dose toxicity
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:
1 000 mg/kg bw/day
Explanation for the modification of the dose descriptor starting point:

Default (DNEL generation plugin)

AF for dose response relationship:
1
Justification:
Default (DNEL generation plugin)
AF for differences in duration of exposure:
6
Justification:
Default (DNEL generation plugin)
AF for interspecies differences (allometric scaling):
4
Justification:
Default (DNEL generation plugin)
AF for other interspecies differences:
2.5
Justification:
Default (DNEL generation plugin)
AF for intraspecies differences:
10
Justification:
Default (DNEL generation plugin)
AF for the quality of the whole database:
1
Justification:
Default (DNEL generation plugin)
AF for remaining uncertainties:
1
Justification:
no remaining uncertainties
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

General Population - Hazard for the eyes

Local effects

Hazard assessment conclusion:
medium hazard (no threshold derived)

Additional information - General Population