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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2013
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: well performed OECD study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013
Report date:
2013

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
GLP compliance:
no
Type of method:
flask method

Test material

Constituent 1
Chemical structure
Reference substance name:
Ethyl 5-oxo-1-phenyl-2-pyrazoline-3-carboxylate
EC Number:
201-899-4
EC Name:
Ethyl 5-oxo-1-phenyl-2-pyrazoline-3-carboxylate
Cas Number:
89-33-8
Molecular formula:
C12H12N2O3
IUPAC Name:
ethyl 5-oxo-1-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylate
Details on test material:
purity: 99.8 %

Results and discussion

Water solubility
Water solubility:
129 mg/L
Temp.:
20 °C
pH:
> 4.9 - < 5

Any other information on results incl. tables

Flask No. Equilibration time pH of aqueous Test substance

at 20°C [h] solution content [mg/L]

1 24 5.0 127

2 48 4.9 125

3 72 5.0 133

mean 129

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information): moderately soluble (100-1000 mg/L)
The water solubility of the substance is 129 mg/L at 20 °C
Executive summary:

The water solubility of the substance was determined according to OECD guideline 105 with the flask method and was found to be 129 mg/L at 20 °C.