Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: US PHARMACOPEIA 786, Ph.Eur 2.9.38
Deviations:
no
GLP compliance:
no
Type of method:
sieving
Type of distribution:
mass based distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
(17β)-3-Hydroxyestra-1,3,5(10)-trien-17-yl acetate
EC Number:
605-722-5
Cas Number:
1743-60-8
Molecular formula:
C20H26O3
IUPAC Name:
(17β)-3-Hydroxyestra-1,3,5(10)-trien-17-yl acetate
Test material form:
solid: crystalline

Results and discussion

Remarks on result:
not determinable
Particle sizeopen allclose all
Percentile:
D10
Mean:
< 152 µm
St. dev.:
0
Percentile:
D50
Mean:
< 261 µm
St. dev.:
0
Percentile:
D90
Mean:
< 463 µm
St. dev.:
0

Applicant's summary and conclusion