Registration Dossier
Registration Dossier
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EC number: 401-540-3 | CAS number: 84632-65-5
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- 3,6-bis(4-chlorophenyl)-2,5-dihydropyrrolo[3,4-c]pyrrol-1,4-dione
- Type of composition:
- legal entity composition of the substance
- State / form:
- solid: particulate/powder
- Related composition:
- 3,6-bis(4-chlorophenyl)-2,5-dihydropyrrolo[3,4-c]pyrrol-1,4-dione
- Reference substance:
- 3,6-bis(4-chlorophenyl)-2,5-dihydropyrrolo[3,4-c]pyrrol-1,4-dione
- Name:
- 3,6-bis(4-chlorophenyl)-2,5-dihydropyrrolo[3,4-c]pyrrol-1,4-dione
- Type of composition:
- legal entity composition of the substance
- State / form:
- solid: nanoform
- Related composition:
- 3,6-bis(4-chlorophenyl)-2,5-dihydropyrrolo[3,4-c]pyrrol-1,4-dione
- Reference substance:
- 3,6-bis(4-chlorophenyl)-2,5-dihydropyrrolo[3,4-c]pyrrol-1,4-dione
- Type of information reported:
- single nanoform
- Name of nanoform:
- 3,6-bis(4-chlorophenyl)-2,5-dihydropyrrolo[3,4-c]pyrrol-1,4-dione nanoform (not surface treated)
- Shape category:
- spheroidal
- Shape:
- cubic
- Pure shape:
- yes
- Shape category:
- spheroidal
- Percentile:
- D10
- Typical value:
- ca. 30.8 nm
- Range:
- ca. 28 - ca. 40 nm
- Percentile:
- D50
- Typical value:
- ca. 46.2 nm
- Range:
- ca. 44 - ca. 54 nm
- Percentile:
- D90
- Typical value:
- ca. 73.1 nm
- Range:
- ca. 65 - ca. 80 nm
- Fraction of constituent particles in the size range 1-100 nm:
- ca. 97 - ca. 100 %
- Structure:
- crystalline
- Name:
- cube
- Pure structure:
- yes
- Typical specific surface area:
- ca. 94.1 m²/g
- Range of specific surface area:
- ca. 85 - ca. 105 m²/g
- Typical volume specific surface area:
- ca. 136.3 m²/cm³
- Range of volume specific surface area:
- ca. 125 - ca. 150 m²/cm³
- Skeletal density:
- ca. 1.58 g/cm³
- Surface treatment applied:
- no
- PBT status:
- the substance is not PBT / vPvB
- Justification:
A weight-of-evidence approach to the assessment of bioaccumulation has been applied according to the strategy for substances with low octanol and water solubility in the Guidance on Information Requirements and Chemical Safety Assessment Chapter R.11: PBT/vPvB assessment (Version 3.0).
Based on evidence demonstrating that both water (Cw) and octanol (Co) solubility are low, resulting in a log Co/Cw of 2.4 (< 4.5), that Cw is substantially smaller than the critical body burden and that uptake is negibible, it can be concluded that both assessed compositions of the substance are not B.
In addition, both assessed compositions of the substance do not fulfill the T-criterion.
In summary, both assessed compositions of the substance are neither PBT, nor vPvB.
Referenceopen allclose all
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