Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
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: 701-339-3 | CAS number: -
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Toxicological Summary
- Administrative data
- Workers - Hazard via inhalation route
- Workers - Hazard via dermal route
- Workers - Hazard for the eyes
- Additional information - workers
- General Population - Hazard via inhalation route
- General Population - Hazard via dermal route
- General Population - Hazard via oral route
- General Population - Hazard for the eyes
- Additional information - General Population
Administrative data
Workers - Hazard via inhalation route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 1.32 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
- Modified dose descriptor starting point:
- NOAEC
- Value:
- 98.74 mg/m³
- AF for dose response relationship:
- 1
- Justification:
- default
- AF for differences in duration of exposure:
- 6
- Justification:
- default for subacute to chronic
- AF for interspecies differences (allometric scaling):
- 1
- Justification:
- default for inhalation
- AF for other interspecies differences:
- 2.5
- Justification:
- default residual
- AF for intraspecies differences:
- 5
- Justification:
- default for workers
- AF for the quality of the whole database:
- 1
- Justification:
- default
- 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:
- 2.8 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
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 840 mg/kg bw/day
- AF for dose response relationship:
- 1
- Justification:
- default
- AF for differences in duration of exposure:
- 6
- Justification:
- default for subacute to chronic
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- default for rat
- AF for other interspecies differences:
- 2.5
- Justification:
- default for residual
- AF for intraspecies differences:
- 5
- Justification:
- default for workers
- AF for the quality of the whole database:
- 1
- Justification:
- default
- 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
Workers - Hazard for the eyes
Local effects
- Hazard assessment conclusion:
- no hazard identified
Additional information - workers
General
The DNELs presented in this section have been developed following REACH technical guidance on route-to route extrapolation and assessment factors (ECHA, 2008).
ECHA (2008) Guidance of information requirements and chemical safety assessment. Chapter R.8: Characterisation of dose [concentration]-response for human health.
Acute toxicity - Workers
A DNEL for acute toxicity should be derived if an acute hazard leading to acute toxicity (e.g. classified under DSD or CLP) has been identified and there is a potential for high peak exposures. If no hazard has been identified then a DNEL for acute toxicity is unnecessary as the long-term DNEL will be sufficient to ensure that adverse effects do no occur. S261A is neither acutely toxic nor is it an irritant (eye, skin or respiratory tract) and therefore no acute DNELs (systemic or local) have been calculated.
Long-term systemic toxicity - Workers
A reliable 3-week feeding study in male rats with a NOAEL of 60 mg/kg bw/d is available for S261A, together with longer-term studies on the structurally related compounds DINP (2-year study) and BBP (90-day study) which provided NOAELs of 17 and 151 mg/kg bw/day, respectively. DNELs for long-term systemic toxicity will be developed for both S261A and DINP, with the one giving the lowest value considered most appropriate.
Inhalation DNEL (systemic) based on DINP
Dose descriptor
A rat chronic (2-year) oral NOAEL of 17 mg/kg bw/d will be used as the starting point.
Modification of dose descriptor
The equivalent rat inhalation NOAEC will be derived using route-to-route extrapolation. Uptake of 75% after inhalation and 50% after ingestion has been assumed (see discussion of toxicokinetics). The inhalatory NOAEC is calculated as follows (ECHA (2008); Figure R.8-3):
NOAECinhalation = NOAELoral x 1/sRVrat 8hr x ABSoral-rat/ABSinh-human x sRVhuman/wRVhuman
= 17 x 1/0.38 x 50/75 x 6.7/10 = 19.98 mg/m3
The NOAEC is then adjusted for differences in exposure pattern (5 d/wk for workers, 7 d/wk for the underlying rat chronic study):
NOAECinhalation = 7/5 x 19.98 = 27.97 mg/m3
Assessment factors
Uncertainty |
AF |
Justification |
Interspecies differences |
1 2.5 |
default for inhalation route residual |
Intraspecies differences |
5 |
default AF for workers |
Differences in duration of exposure |
1 |
default for chronic exposure |
Dose response and endpoint specific/severity issues |
1 |
default AF |
Quality of database |
1 |
default AF |
Overall AF |
12.5 |
|
DNELl-t inhal-systemic = 27.97 / 12.5 = 2.24 mg/m3
Inhalation DNEL (systemic) based on S261A
Dose descriptor
A rat sub-acute (3-week) oral NOAEL of 60 mg/kg bw/d will be used as the starting point.
Modification of dose descriptor
The equivalent rat inhalation NOAEC will be derived using route-to-route extrapolation. Uptake of 75% after inhalation and 50% after ingestion has been assumed (see discussion of toxicokinetics). The inhalatory NOAEC is calculated as follows (ECHA (2008); Figure R.8-3):
NOAECinhalation = NOAELoral x 1/sRVrat 8hr x ABSoral-rat/ABSinh-human x sRVhuman/wRVhuman
= 60 x 1/0.38 x 50/75 x 6.7/10 = 70.53 mg/m3
The NOAEC is then adjusted for differences in exposure pattern (5 d/wk for workers, 7 d/wk for the underlying rat sub-acute study):
NOAECinhalation = 7/5 x 70.53 = 98.74 mg/m3
Assessment factors
Uncertainty |
AF |
Justification |
Interspecies differences |
1 2.5 |
default for inhalation route residual |
Intraspecies differences |
5 |
default AF for workers |
Differences in duration of exposure |
6 |
default for sub-acute to chronic extrapolation |
Dose response and endpoint specific/severity issues |
1 |
default AF |
Quality of database |
1 |
default AF |
Overall AF |
75 |
|
DNELl-t inhal-systemic = 98.74 / 75 = 1.32 mg/m3
The inhalation long-term systemic DNEL for S261A will therefore be based on results from a substance-specific sub-acute feeding study (more conservative outcome), and a DNEL of 5.48 mg/m3 used for risk characterisation.
Dermal DNEL (systemic) based on DINP
Dose descriptor
A rat chronic (2-year) oral NOAEL of 17 mg/kg bw/d will be used as the starting point. Modification of dose descriptor The equivalent rat dermal NOAEL will be derived using route-to-route extrapolation. Uptake of 5% by the skin and 50% after ingestion has been assumed (see discussion of toxicokinetics). The dermal NOAEL may be calculated as follows:
NOAELdermal = NOAELoral x ABSoral-rat/ABSdermal-human
= 17 x 50/5 = 170 mg/kg bwt/d
The NOAEL is then adjusted for differences in exposure pattern (5 d/wk for workers, 7 d/wk for the underlying rat chronic study):
NOAELdermal = 7/5 x 170 = 238 mg/kg bwt/d
Assessment factors
Uncertainty |
AF |
Justification |
Interspecies differences |
4 2.5 |
default for rat residual |
Intraspecies differences |
5 |
default AF for workers |
Differences in duration of exposure |
1 |
default for chronic exposure |
Dose response and endpoint specific/severity issues |
1 |
default AF |
Quality of database |
1 |
default AF |
Overall AF |
50 |
|
DNELl-t dermal-systemic = 238 / 50 = 4.76 mg/kg bw/d
Dermal DNEL (systemic) based on S261A
Dose descriptor
A rat sub-acute (3-week) oral NOAEL of 60 mg/kg bw/d will be used as the starting point.
Modification of dose descriptor
The equivalent rat dermal NOAEL will be derived using route-to-route extrapolation. Uptake of 5% by the skin and 50% after ingestion has been assumed (see discussion of toxicokinetics) The dermal NOAEL may be calculated as follows:
NOAELdermal = NOAELoral x ABSoral-rat/ABSdermal-human
= 60 x 50/5 = 600 mg/kg bwt/d
The NOAEL is then adjusted for differences in exposure pattern (5 d/wk for workers, 7 d/wk for the underlying rat sub-acute study):
NOAELdermal = 7/5 x 600 = 840 mg/kg bwt/d
Assessment factors
Uncertainty |
AF |
Justification |
Interspecies differences |
4 2.5 |
default for rat residual |
Intraspecies differences |
5 |
default AF for workers |
Differences in duration of exposure |
6 |
default for sub-acute to chronic extrapolation |
Dose response and endpoint specific/severity issues |
1 |
default AF |
Quality of database |
1 |
default AF |
Overall AF |
300 |
|
DNELl-t dermal-systemic = 840 / 300 = 2.8 mg/kg bw/d
The dermal long-term systemic DNEL for S261A will therefore be based on results from a substance-specific sub-acute feeding study (more conservative outcome), and a DNEL of 2.8 mg/kg bw/d used for risk characterisation.
Long-term local effects
No long-term local effects have been reported for S261A or related phthalate esters, hence no long-term local DNELs have been calculated.General Population - Hazard via inhalation route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 0.23 µg/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
- Modified dose descriptor starting point:
- NOAEC
- Value:
- 34.78 mg/m³
- AF for dose response relationship:
- 1
- Justification:
- default
- AF for differences in duration of exposure:
- 6
- Justification:
- default for subacute to chronic
- AF for interspecies differences (allometric scaling):
- 1
- Justification:
- default for inhalation route
- AF for other interspecies differences:
- 2.5
- Justification:
- default residual
- AF for intraspecies differences:
- 10
- Justification:
- default for general population
- AF for the quality of the whole database:
- 1
- Justification:
- default
- AF for remaining uncertainties:
- 1
- Justification:
- no remaining uncertanties
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 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
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 600 mg/kg bw/day
- AF for dose response relationship:
- 1
- Justification:
- default
- AF for differences in duration of exposure:
- 6
- Justification:
- default for subacute to chronic
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- default for rat
- AF for other interspecies differences:
- 2.5
- Justification:
- default residual
- AF for intraspecies differences:
- 10
- Justification:
- default for general opoulation
- AF for the quality of the whole database:
- 1
- Justification:
- default
- 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-threshold effect and/or no dose-response information available
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:
- 0.1 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
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 60 mg/kg bw/day
- AF for dose response relationship:
- 1
- Justification:
- default
- AF for differences in duration of exposure:
- 6
- Justification:
- default for subacute to chronic
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- default for rat
- AF for other interspecies differences:
- 2.5
- Justification:
- default residual
- AF for intraspecies differences:
- 10
- Justification:
- default for general population
- AF for the quality of the whole database:
- 1
- Justification:
- default
- 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:
- no hazard identified
Additional information - General Population
General
The DNELs presented in this section have been developed following REACH technical guidance on route-to route extrapolation and assessment factors (ECHA, 2008).
ECHA (2008) Guidance of information requirements and chemical safety assessment. Chapter R.8: Characterisation of dose [concentration]-response for human health.
Acute toxicity – General population
A DNEL for acute toxicity should be derived if an acute hazard leading to acute toxicity (e.g. classified under DSD or CLP) has been identified and there is a potential for high peak exposures. If no hazard has been identified then a DNEL for acute toxicity is unnecessary as the long-term DNEL will be sufficient to ensure that adverse effects do no occur. S261A is neither acutely toxic nor is it an irritant (eye, skin or respiratory tract) and therefore no acute DNELs (systemic or local) have been calculated.
Long-term systemic toxicity – General population
For consistency with the preceding analysis for workers, long-term systemic DNELs for the general population with be based on a substance-specific sub-acute NOAEL of 60 mg/kg bw/d obtained for S261A.
Inhalation DNEL (systemic)
Dose descriptor
A rat sub-acute (3-week) oral NOAEL of 60 mg/kg bw/d will be used as the starting point. Modification of dose descriptor The equivalent rat inhalation NOAEC will be derived using route-to-route extrapolation. Uptake of 75% after inhalation and 50% after ingestion has been assumed (see discussion of toxicokinetics). The inhalatory NOAEC is calculated as follows (ECHA (2008); Figure R.8-3):
NOAECinhalation = NOAELoral x 1/sRVrat 24hr x ABSoral-rat/ABSinh-human x ABSinh-rat/ABSinh-human
= 60 x 1/1.15 x 50/75 = 34.78 mg/m3
No additional correction is required for differences in exposure pattern (7 d/wk for general population, 7 d/wk for the underlying rat sub-acute study.
Assessment factors
Uncertainty |
AF |
Justification |
Interspecies differences |
1 2.5 |
default for inhalation route residual |
Intraspecies differences |
10 |
default AF for general population |
Differences in duration of exposure |
6 |
default for sub-acute to chronic extrapolation |
Dose response and endpoint specific/severity issues |
1 |
default AF |
Quality of database |
1 |
default AF |
Overall AF |
150 |
|
DNELl-t inhal-systemic = 34.78 / 150 = 0.23 mg/m3
Dermal DNEL (systemic)
Dose descriptor
A rat sub-acute (3-week) oral NOAEL of 60 mg/kg bw/d will be used as the starting point.
Modification of dose descriptor
The equivalent rat dermal NOAEL will be derived using route-to-route. Uptake of 5% by the skin and 50% after ingestion has been assumed (see discussion of toxicokinetics). The dermal NOAEL may be calculated as follows:
NOAELdermal = NOAELoral x ABSoral-rat/ABSdermal-human
= 60 x 50/5 = 600 mg/kg bwt/d
No additional correction is required for differences in exposure pattern (7 d/wk for general population, 7 d/wk for the underlying rat sub-acute study).
Assessment factors
Uncertainty |
AF |
Justification |
Interspecies differences |
4 2.5 |
default for rat residual |
Intraspecies differences |
10 |
default AF for workers |
Differences in duration of exposure |
6 |
default for sub-acute to chronic extrapolation |
Dose response and endpoint specific/severity issues |
1 |
default AF |
Quality of database |
1 |
default AF |
Overall AF |
600 |
|
DNELl-t dermal-systemic = 600 / 600 = 1.00 mg/kg bw/d
Oral DNEL (systemic)
Dose descriptor
A rat sub-acute (3-week) oral NOAEL of 60 mg/kg bw/d will be used as the starting point.
Modification of dose descriptor The extent of uptake from the gastrointestinal tract will be assumed to be identical for rats and humans. No additional correction is required (7 d/wk for general population, 7 d/wk for the underlying rat sub-acute study)
Assessment factors
Uncertainty |
AF |
Justification |
Interspecies differences |
4 2.5 |
default for rat residual |
Intraspecies differences |
10 |
default AF for workers |
Differences in duration of exposure |
6 |
default for sub-acute to chronic extrapolation |
Dose response and endpoint specific/severity issues |
1 |
default AF |
Quality of database |
1 |
default AF |
Overall AF |
600 |
|
DNELl-t dermal-systemic = 60 / 600 = 0.10 mg/kg bw/d
Long-term local effects
No long-term local effects have been reported for S261A or related phthalate esters, hence no long-term local DNELs have been calculated.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.