Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Workers - Hazard via inhalation route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
20.3 mg/m³
Most sensitive endpoint:
repeated dose toxicity
Route of original study:
By inhalation
DNEL related information
DNEL derivation method:
other: See discussion below
Overall assessment factor (AF):
6
Modified dose descriptor starting point:
NOAEC
Value:
122 mg/m³
AF for dose response relationship:
1
Justification:
Default
AF for differences in duration of exposure:
2
Justification:
Sub-chronic to chronic extrapolation
AF for interspecies differences (allometric scaling):
1
Justification:
No interspecies factor is required because this is an inhalation study
AF for other interspecies differences:
1
Justification:
No additional factor deemed necessary. See attachment to this record in IUCLID dossier
AF for intraspecies differences:
3
Justification:
See attachment to this record in IUCLID dossier
AF for the quality of the whole database:
1
Justification:
Default
AF for remaining uncertainties:
1
Justification:
Default
Acute/short term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
50.8 mg/m³
Most sensitive endpoint:
repeated dose toxicity
Route of original study:
By inhalation
DNEL related information
DNEL derivation method:
ECHA REACH Guidance
DNEL extrapolated from long term DNEL

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:
2.9 mg/kg bw/day
Most sensitive endpoint:
repeated dose toxicity
Route of original study:
By inhalation
DNEL related information
DNEL derivation method:
other: See discussion below
Explanation for the modification of the dose descriptor starting point:
There is no repeat dose dermal study available for this substance. A chronic study is available by the inhalation route . See justification below for details extrapolation from the inhalation to the dermal DNEL.
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

General Population - Hazard via inhalation route

Systemic effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
12.2 mg/m³
Most sensitive endpoint:
repeated dose toxicity
Route of original study:
By inhalation
DNEL related information
DNEL derivation method:
other: See discussion below
Overall assessment factor (AF):
10
Modified dose descriptor starting point:
NOAEC
Value:
122 mg/m³
AF for dose response relationship:
1
Justification:
Default
AF for differences in duration of exposure:
2
Justification:
Sub-chronic to chronic extrapolation
AF for interspecies differences (allometric scaling):
1
Justification:
No interspecies factor is required because this is an inhalation study
AF for other interspecies differences:
1
Justification:
No additional factor deemed necessary. See attachment to this record in IUCLID dossier
AF for intraspecies differences:
5
Justification:
See attachment to this record in IUCLID dossier
AF for the quality of the whole database:
1
Justification:
Default
AF for remaining uncertainties:
1
Justification:
Default
Acute/short term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
30.5 mg/m³
Most sensitive endpoint:
repeated dose toxicity
DNEL related information
DNEL derivation method:
ECHA REACH Guidance
DNEL extrapolated from long term DNEL

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:
1.4 mg/kg bw/day
Most sensitive endpoint:
repeated dose toxicity
Route of original study:
By inhalation
DNEL related information
DNEL derivation method:
ECHA REACH Guidance
Explanation for the modification of the dose descriptor starting point:
There is no repeat dose dermal study available for this substance. A chronic study is available by the inhalation route. See justification below for details of extrapolation from the inhalation to the dermal DNEL.
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:
0.16 mg/kg bw/day
Most sensitive endpoint:
repeated dose toxicity
Route of original study:
Oral
DNEL related information
DNEL derivation method:
other: See justification below
Overall assessment factor (AF):
120
Modified dose descriptor starting point:
NOAEL
AF for dose response relationship:
1
Justification:
Default
AF for differences in duration of exposure:
6
Justification:
Default for extrapolation from sub-acute to chronic.
AF for interspecies differences (allometric scaling):
4
Justification:
Default for extrapolation from rats to humans
AF for other interspecies differences:
1
Justification:
No additional factor deemed necessary. See attachment to this record in IUCLID dossier
AF for intraspecies differences:
5
Justification:
See attachment to this record in IUCLID dossier
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

Note that derivation of consumer DNELs is somewhat academic as there are no consumer uses for this substance.