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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
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EC number: - | 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
Endpoint summary
Administrative data
Description of key information
Not toxic by the oral and dermal routes
Key value for chemical safety assessment
Acute toxicity: via oral route
Link to relevant study records
- Endpoint:
- acute toxicity: oral
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- 1984-09-28 to 1984-10-12
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Complete guideline conform study report available. Study is performed under GLP.
- Justification for type of information:
- The analogue approach is used for the hazard assessment of toxicological, eco-toxicological and environmental fate endpoints for the registration Pentamid™ KH (EC 934-047-1). The hypothesis is that data can be read-across between Pentamid™ KH and its structural analogues, based on structural similarity and common breakdown/metabolic products (Scenario 1 of the Read-Across Assessment Framework (RAAF, ECHA, 2015)).
For mammalian toxicity the “parent” substances show no significant systemic or dermal toxicity in mammals and vertebrates. One of the metabolic products of Pentamid™ KH, the well-studied terephthalic acid, has no significant systemic toxicity. The amine metabolite, however, shows diffuse mammalian systemic toxicity at moderate concentrations. This metabolite is employed in the risk assessment, in agreement with the European Union draft Risk Assessment Report of 2008.
The sole classification for Pentamid™ KH is the precautionary aquatic chronic 4 category, based on low water solubility and a log Kow higher than 4.
Read-across data, all evaluated as reliable according to Klimisch scores of 1 or 2, to estimate the toxicity of the registered substance is used for fulfilling the data requirements of the REACH registration and classifying potential hazards. This read-across approach is adequate for the purposes of risk assessment and classification and labeling. - Reason / purpose for cross-reference:
- read-across source
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 401 (Acute Oral Toxicity)
- GLP compliance:
- yes
- Test type:
- standard acute method
- Limit test:
- yes
- Species:
- rat
- Strain:
- Wistar
- Sex:
- male/female
- Route of administration:
- oral: gavage
- Vehicle:
- other: sesame oil
- Doses:
- single dose: 5000 mg/kg bw
- No. of animals per sex per dose:
- 5 /sex/group
- Control animals:
- no
- Key result
- Sex:
- male/female
- Dose descriptor:
- LD50
- Effect level:
- > 5 000 mg/kg bw
- Based on:
- test mat.
- Mortality:
- No mortality occurred during the 14 day observation period
- Clinical signs:
- other: Immediate after application of the test substance the following signs of toxicity were observed: Hypoactivity, crouch and scrubby fur. The day after treatment no signs of toxicity were observed.
- Gross pathology:
- No macroscopic visible effects were observed.
- Other findings:
- No other findings.
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- Based on the acute oral toxicity study of a structural analogue source material, the median lethal dose (LD50) of this test substance after single oral administration to male and female Wistar rats observed over a period of 14 days is over 5000 mg/kg bw. The target substance is not calssified for acute oral toxicity according to Regulation EC No. 1272/2008.
- Executive summary:
A study was performed to determine the acute oral median lethal dose (LD50) of the source
material, administered once per oral gavage as a solution in 12.5% sesame oil in Wistar rat. The
method used followed that described in the OECD Guidelines for Testing of Chemicals (1981) No.
401 "Acute Oral Toxicity" referenced as EU Method B.1 (Acute Toxicity (Oral)).
Ten fasted animals (five per sex) were given a single oral dose of test material at the dose level of
5000 mg/kg bw. No mortality occurred. Immediate after application of the test substance the
following signs of toxicity as hypoactivity, crouch and scrubby fur were observed. No clinical
signs were observed the day after the treatment and during the observation period of 14 days. No
effect on body weight development was observed. At the end of the observation period all rats
were sacrificed with CO2 gas. Gross pathological examination dit not reveal any alteration.
Based on the results of above mentioned study the median lethal dose (LD50) of the source
substance after single oral administration to male and female rats, observed over a period of 14
days is over 5000 mg/kg bw.
Reference
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed
- Dose descriptor:
- LD50
- Value:
- 5 000 mg/kg bw
- Quality of whole database:
- adequate
Acute toxicity: via inhalation route
Link to relevant study records
- Endpoint:
- acute toxicity: inhalation
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
- Justification for type of information:
- If no dermal tox study exists and is waived: According to Annex VIII, Section 8.5, Column 2, of Regulation EC No. 1907/2006, a toxicity study, in addition to the acute oral toxicity study, under 8.5.2 to 8.5.3 shall be provided for at least one other route. Commission Regulation (EU) 2016/863 amends this data requirement, stating that substances that are not toxic via the oral route may be expected with high certainty to be also non-toxic via the dermal route. The risk of acute toxicity by the dermal route has been addressed in light of an acute oral toxicity study with a LD50 > 2000 and no systemic toxicity observed in other in vivo studies. It is determined that testing for acute dermal toxicity is not scientifically indicated. The criteria for satisfaction of Sections 8.5.2 and 8.5.3 are met and the data requirement for an acute toxicity study by a third route, inhalation, is waived.
Reference
Endpoint conclusion
- Endpoint conclusion:
- no study available
Acute toxicity: via dermal route
Link to relevant study records
- Endpoint:
- acute toxicity: dermal
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance does not meet the criteria for classification as acute toxicity or STOT SE by the oral route and no systemic effects have been observed in in vivo studies with dermal exposure (e.g. skin irritation, skin sensitisation)
- Justification for type of information:
- According to Commission Regulation (EU) 2016/863 amending Regulation EC No. 1907/2006, acute testing by the dermal route does not need to be conducted if the substance does not meet the criteria for classification as acute toxicity or STOT SE by the oral route, and no systemic effects have been observed in in vivo studies with dermal exposure. The test material displayed an acute oral LD50 > 2000 mg/kg bw in rats, is not classified as STOT SE, and no systemic toxicity or local irritation was observed in dermal studies. Therefore the substance meets the criteria for waiving the testing requirements for acute dermal toxicity.
Reference
Endpoint conclusion
- Endpoint conclusion:
- no study available
Additional information
Justification for classification or non-classification
The acute oral toxicity to rats of a close structural analogue substance is > 5000 mg/kg bw. Commission Regulation (EU) 2016/863 amends the Annex VIII, Section 8.5 requirement for toxicity data on two routes of administration, stating that substances that are not toxic via the oral route may be expected with high certainty to be also non-toxic via the dermal route. The risk of acute toxicity by the dermal route has been addressed in light of an acute oral toxicity study with a LD50 > 2000 and no systemic toxicity observed in other in vivo studies. The criteria for classification for acute toxicity for any route of administration are not met.
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.