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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
pH
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The study performed with scientific authoritative method

Data source

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

Materials and methods

Principles of method if other than guideline:
measured by pH meter
GLP compliance:
no

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
Details on test material:
- Substance type: organic
- Physical state: solid

Results and discussion

pH value
pH value:
5.62
Temp.:
27 °C
Concentration:
1 vol%

Applicant's summary and conclusion