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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 200-746-9 | CAS number: 71-23-8
Toxicological Summary
Administrative data
Workers - Hazard via inhalation route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- no hazard identified
Acute/short term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 1 037 mg/m³
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- By inhalation
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 12.5
- Dose descriptor starting point:
- NOAEC
- Value:
- 12 960 mg/m³
- AF for dose response relationship:
- 1
- Justification:
- ECHA REACH Guidance: starting point for the DNEL calculation is a NOAEC, therefore no additional factor is used.
- AF for interspecies differences (allometric scaling):
- 1
- Justification:
- ECHA REACH Guidance: no additional factor needed for the derivation of an inhalatory DNEL
- AF for other interspecies differences:
- 2.5
- Justification:
- ECHA REACH Guidance: The recommended default 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:
- ECHA REACH Guidance: The quality of the whole data base is considered to be sufficient and uncritical.
- AF for remaining uncertainties:
- 1
- Justification:
- ECHA REACH Guidance: default factor. The approach used for DNEL derivation is conservative. No further assessment factors are required.
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:
- 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
Workers - Hazard for the eyes
Local effects
- Hazard assessment conclusion:
- medium hazard (no threshold derived)
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:
- DNEL (Derived No Effect Level)
- Value:
- 518 mg/m³
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- By inhalation
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 25
- Dose descriptor starting point:
- NOAEC
- Value:
- 12 960 mg/m³
- AF for dose response relationship:
- 1
- Justification:
- ECHA REACH Guidance: starting point for the DNEL calculation is a NOAEC, therefore no additional factor is used.
- AF for interspecies differences (allometric scaling):
- 1
- Justification:
- ECHA REACH Guidance: no additional factor needed for the derivation of an inhalatory DNEL
- AF for other interspecies differences:
- 2.5
- Justification:
- ECHA REACH Guidance: The recommended default AF for other interspecies differences is applied.
- AF for intraspecies differences:
- 10
- Justification:
- The default value for the relatively heterogenous group "general population" is used.
- AF for the quality of the whole database:
- 1
- Justification:
- ECHA REACH Guidance: The quality of the whole data base is considered to be sufficient and uncritical.
- AF for remaining uncertainties:
- 1
- Justification:
- ECHA REACH Guidance: default factor. The approach used for DNEL derivation is conservative. No further assessment factors are required.
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
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:
- medium hazard (no threshold derived)
Additional information - General Population
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.
