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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data

Data source

Reference
Reference Type:
review article or handbook
Title:
Final report on the safety assessment of phenyl methyl pyrazolone
Author:
Cosmetic Ingredient Review
Year:
1992
Bibliographic source:
Journal of the American College of Toxicology, Volume 11, Number 4

Materials and methods

Test guideline
Guideline:
other: the method is not provided
GLP compliance:
not specified
Type of method:
other: no information

Test material

Constituent 1
Chemical structure
Reference substance name:
3-methyl-1-phenyl-5-pyrazolone
EC Number:
201-891-0
EC Name:
3-methyl-1-phenyl-5-pyrazolone
Cas Number:
89-25-8
Molecular formula:
C10H10N2O
IUPAC Name:
5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one

Results and discussion

Vapour pressure
Key result
Temp.:
20 °C
Vapour pressure:
< 0.01 mm Hg

Applicant's summary and conclusion

Conclusions:
Pyrazole was reported to have a vapor pressure below 0.01 mmHg (data from litterature).