Registration Dossier
Registration Dossier
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EC number: 426-290-2 | CAS number: 74149-72-7
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 11 August 2008 to 30 January 2009
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: compliant to GLP and testing guideline; adequate coherence between data, comments and conclusions
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of distribution:
- counted distribution
Test material
- Reference substance name:
- -
- EC Number:
- 426-290-2
- EC Name:
- -
- Cas Number:
- 74149-72-7
- Molecular formula:
- C20H20N2O7
- IUPAC Name:
- methyl 4-[4-(4-methoxybenzamido)-3-nitrophenyl]-3-methyl-4-oxobutanoate
- Details on test material:
- - Name of test material (as cited in study report): GAMMA NAP
- Substance type: monoconstituent
- Physical state: yellow powder
- Analytical purity: 99.9%
- Purity test date: 11 January 2008
- Lot/batch No.: 07/004/2
- Expiration date of the lot/batch: January 2009
- Storage condition of test material: in darkness at room temperature
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D50
- Mean:
- 143.872 µm
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- Percentile:
- D90
- Mean:
- 409.384 µm
Particle size distribution at different passagesopen allclose all
- No.:
- #1
- Size:
- <= 1 mm
- Distribution:
- 0.07 %
- No.:
- #2
- Size:
- <= 100 µm
- Distribution:
- 27.2 %
- No.:
- #3
- Size:
- <= 90 µm
- Distribution:
- 18.7 %
- No.:
- #4
- Size:
- <= 63 µm
- Distribution:
- 0.2 %
Applicant's summary and conclusion
- Executive summary:
Preliminary sieving:
The majority of the particles was lower than 100 µm. So the principal sieving was made lower than 100 µm.
Principal sieving:
As the powder was fine and sticky, the particle size distribution was made by laser granulometry.
Particle size distribution by laser diffraction:
Median diameter: 143.872 µm
Mean diameter: 233.977 µm
D(0.9): 409.384 µm
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