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EC number: 812-963-1 | CAS number: 178436-06-1
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017-02-27
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Qualifier:
- according to guideline
- Guideline:
- other: USP <429>
- GLP compliance:
- no
- Other quality assurance:
- ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- 9-Octadecenamide, N-[(1S,2S,3R)-2,3-dihydroxy-1-(hydroxymethyl)heptadecyl]-, (9Z)-
- EC Number:
- 812-963-1
- Cas Number:
- 178436-06-1
- Molecular formula:
- C36H71NO4
- IUPAC Name:
- 9-Octadecenamide, N-[(1S,2S,3R)-2,3-dihydroxy-1-(hydroxymethyl)heptadecyl]-, (9Z)-
- Test material form:
- solid
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D10
- Mean:
- ca. 14 µm
- St. dev.:
- 1.49
- Key result
- Percentile:
- D50
- Mean:
- ca. 87 µm
- St. dev.:
- 22.71
- Percentile:
- D90
- Mean:
- ca. 257 µm
- St. dev.:
- 115.46
Any other information on results incl. tables
Volume Distribution Q3 |
d10 |
d50 |
d90 |
|
15.58 |
119.5 |
419.7 |
|
12.05 |
71.18 |
167.3 |
|
13.00 |
71.47 |
183.0 |
Mean: |
13.54 |
87.38 |
256.7 |
The average of three measurements is:
d10: 14 µm
d50: 87 µm
d90: 257 µm
Applicant's summary and conclusion
- Conclusions:
- The average particle size (volume distribution) of the test item is d10: 14 µm, d50: 87 µm, d90: 257 µm
- Executive summary:
The particle size distribution (volume distribution) of Ceramide III was measured by laser diffraction in n-Heptane. The average of three measurements is: d10: 14 µm, d50: 87 µm, d90: 257 µm
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