Registration Dossier
Registration Dossier
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EC number: 219-730-8 | CAS number: 2512-29-0
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- 2-[(4-methyl-2-nitrophenyl)azo]-3-oxo-N-phenylbutyramide
- Type of composition:
- boundary composition of the substance
- State / form:
- solid: nanoform
- Reference substance:
- 2-[(4-methyl-2-nitrophenyl)azo]-3-oxo-N-phenylbutyramide
- Type of information reported:
- single nanoform
- Name of nanoform:
- C.I. Pigment Yellow 1-joint submission
- Shape category:
- elongated
- Shape:
- rod
- Pure shape:
- no
- Range:
- > 5 - < 60 %
- Shape category:
- spheroidal
- Shape:
- spherical
- Pure shape:
- no
- Range:
- > 0 - < 20 %
- Shape category:
- spheroidal
- Shape:
- cubic
- Pure shape:
- no
- Range:
- > 50 - < 70 %
- Shape category:
- elongated
- Percentile:
- D90
- Range:
- > 0.07 - < 0.155 μm
- Percentile:
- D50
- Range:
- > 0.03 - < 0.1 μm
- Percentile:
- D10
- Range:
- > 0.01 - < 0.09 μm
- Range of length:
- > 0.075 - < 0.585 μm
- Range of aspect ratio (:1):
- >= 2.8 - <= 5
- Additional information:
- The determined particle size distribution relates to both shape categories. The smallest dimension of all particles had been considered.
ASSEMBLY STRUCTURE: homogeneous and solid particles.
RIGIDITY: not required/appropriate. - Fraction of constituent particles in the size range 1-100 nm:
- > 50 - < 100 %
- Shape category:
- spheroidal
- Percentile:
- D90
- Range:
- > 0.07 - < 0.155 μm
- Percentile:
- D50
- Range:
- > 0.03 - < 0.1 μm
- Percentile:
- D10
- Range:
- > 0.01 - < 0.09 μm
- Additional information:
- The determined particle size distribution relates to both shape categories. The smallest dimension of all particles had been considered.
ASSEMBLY STRUCTURE: homogeneous and solid particles.
RIGIDITY: not required/appropriate. - Fraction of constituent particles in the size range 1-100 nm:
- > 50 - < 100 %
- Structure:
- crystalline
- Name:
- C.I. Pigment Yellow 1
- Pure structure:
- yes
- Range of specific surface area:
- >= 5 - <= 125 m²/g
- Surface treatment applied:
- no
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Based on evaluation of the data described in the end point study record in IUCLID section 2.3 it is concluded here that the submission substance
· is not readily and not inherently biodegradable and is considered to fulfil the P criterion
· is not fulfilling the B (or vB) criterion
· and is not fulfilling the T criterion
and therefore is evaluated to be neither a PBT nor a vPvB substance.
Overall conclusion:
Based on the assessment described in the subsections below the submission substance is not considered to be PBT /vPvB.
- Likely routes of exposure:
The submission substance is not PBT or vPvB. Therefore no emission characterisation is required.
Reference
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.
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