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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Density

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Administrative data

Endpoint:
bulk density
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
2013
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The study performed with scientific method, no guideline and non GLP, insufficient methodology and experimental details provided

Data source

Reference
Reference Type:
other: ECHA disseminated dossier
Title:
Registered substances CAS 108-26-9
Bibliographic source:
ECHA, online query 13.11.2014

Materials and methods

Principles of method if other than guideline:
calculated based on the mass per unit volume of liquid
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
2,4-dihydro-5-methyl-3H-pyrazol-3-one
EC Number:
203-565-3
EC Name:
2,4-dihydro-5-methyl-3H-pyrazol-3-one
Cas Number:
108-26-9
Molecular formula:
C4H6N2O
IUPAC Name:
2,4-dihydro-5-methyl-3H-pyrazol-3-one

Results and discussion

Density
Type:
bulk density
Density:
0.736 g/cm³
Temp.:
37 °C

Applicant's summary and conclusion