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Diss Factsheets

Administrative data

Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: According to guideline OECD 105

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

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

Test material

Constituent 1
Chemical structure
Reference substance name:
4-(3-methyl-5-oxo-2-pyrazolin-1-yl)benzenesulphonic acid
EC Number:
201-901-3
EC Name:
4-(3-methyl-5-oxo-2-pyrazolin-1-yl)benzenesulphonic acid
Cas Number:
89-36-1
Molecular formula:
C10H10N2O4S
IUPAC Name:
4-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid

Results and discussion

Water solubility
Water solubility:
5.16 g/L
Temp.:
20 °C
pH:
1.9
Remarks on result:
other: mean of 3 measurements

Any other information on results incl. tables

Flask No.

Equilibration time
at 20 °C [h]

pH of aqueous
solution

Test substance
content [g/L]

1

24

1.9

5.27

2

48

1.9

5.11

3

72

1.9

5.12

mean

---

---

5.16

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information): soluble (1000-10000 mg/L)
Executive summary:

The water solubility was determined according to OECD TG 105. After a preliminary test, the shake flask method was chosen and yielded a water solubility of 5.16 g/L at 20 °C.

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