Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 700-862-4 | CAS number: 42797-18-2
Toxicological Summary
Administrative data
Workers - Hazard via inhalation route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 1.64 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:
- 100 mg/kg bw/day
- Modified dose descriptor starting point:
- NOAEC
- Value:
- 123.42 mg/m³
- Explanation for the modification of the dose descriptor starting point:
The relevant dose descriptor selected to derive the inhalation DNEL, was the oral rat NOAEL of 100 mg/kg bw/day derived from an OECD 422 combined oral repeated dose toxicity study with reproduction/developmental toxicity screening study conducted with the read across substance. This dose descriptor, which is the starting point was corrected for route-to-route extrapolation:
[i.e., NOAEL oral rat ÷ SRvrat x (SRvhuman ÷ WSRvhuman) x (ABSoral-rat/ABSinh-human) x days per week(experimental)/days per week (human population] in accordance with REACH guidance document R.8 (‘Characterization of dose (concentration)-response for human health’) November (2012); where: NOAELoral rat = 100 mg/kg bw/d; SRvrat = 0.38 m3/kg bw; SRvhuman = 6.7 m3; WSRvhuman = 10 m3; ABSoral-rat = 50%; ABSinh-human = 100%; days per week (experimental) = 7 days; days per week (human population) = 5 days for workers) = 100 x 1/0.38 x 6.7/10 x 7/5 x 50/100 = 123.42 mg/m3]
- AF for dose response relationship:
- 1
- Justification:
- (Starting point is a NOAEL)
- AF for differences in duration of exposure:
- 6
- Justification:
- (Sub-acute to chronic)
- AF for interspecies differences (allometric scaling):
- 1
- Justification:
- (Rat to human; already accounted for in conversion oral to inhalation)
- AF for other interspecies differences:
- 2.5
- Justification:
- (Remaining differences)
- AF for intraspecies differences:
- 5
- Justification:
- (Workers)
- AF for the quality of the whole database:
- 1
- Justification:
- (Guideline compliant studies)
- AF for remaining uncertainties:
- 1
- Justification:
- (No additional factors are required)
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
DNEL related information
Local effects
Long term exposure
- Hazard assessment conclusion:
- no hazard identified
- Most sensitive endpoint:
- repeated dose toxicity
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:
- 0.467 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:
- 100 mg/kg bw/day
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 140 mg/kg bw/day
- Explanation for the modification of the dose descriptor starting point:
The relevant dose descriptor selected to derive the dermal DNEL, was the oral rat NOAEL of 100 mg/kg bw/day derived from an OECD 422 combined oral repeated dose toxicity study with the reproduction/developmental toxicity screening study conducted with the read across substance. This dose descriptor, which is the starting point was corrected for route-to-route extrapolation:
[i.e., NOAEL oral rat x (ABSoral-rat/ABSderm-human) x days per week(experimental)/days per week(human population] in accordance with REACH guidance document R.8 (‘Characterization of dose (concentration)-response for human health’) November (2012); where: NOAELoral rat = 100 mg/kg bw/d; ABSoral-rat = 50%; ABSderm-human = 50%; days per week (experimental) = 7 days; days per week (human population) = 5 days for workers) = 100 x 7/5 x 50/50 = 140 mg/kg bw/day]).
- AF for dose response relationship:
- 1
- Justification:
- (Starting point is a NOAEL)
- AF for differences in duration of exposure:
- 6
- Justification:
- (Sub-acute to chronic)
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- (Rat to human)
- AF for other interspecies differences:
- 2.5
- Justification:
- (Remaining differences)
- AF for intraspecies differences:
- 5
- Justification:
- (Workers)
- AF for the quality of the whole database:
- 1
- Justification:
- (Guideline compliant studies)
- AF for remaining uncertainties:
- 1
- Justification:
- (No additional factors are required)
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
- Most sensitive endpoint:
- acute toxicity
DNEL related information
Local effects
Long term exposure
- Hazard assessment conclusion:
- no hazard identified
- Most sensitive endpoint:
- sensitisation (skin)
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
- Most sensitive endpoint:
- sensitisation (skin)
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:
- no hazard identified
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:
- no hazard identified
DNEL related information
- AF for intraspecies differences:
- 10
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:
- no hazard identified
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
No DNELs for general population have been derived as no REACH-relevant consumer use has been identified.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
