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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
key study
Study period:
17. April 2018
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2-[[4-[3-(4,5-dichloro-2-methylphenyl)-4,5-dihydro-1H-pyrazol-1-yl]phenyl]sulphonyl]ethyl acetate
EC Number:
252-564-4
EC Name:
2-[[4-[3-(4,5-dichloro-2-methylphenyl)-4,5-dihydro-1H-pyrazol-1-yl]phenyl]sulphonyl]ethyl acetate
Cas Number:
35441-14-6
Molecular formula:
C20H20Cl2N2O4S
IUPAC Name:
2-{4-[3-(4,5-dichloro-2-methylphenyl)-4,5-dihydro-1H-pyrazol-1-yl]benzenesulfonyl}ethyl acetate
Test material form:
solid: particulate/powder
Details on test material:
Name: 2-[4-[5-(4,5-dichloro-2-methylphenyl)-3,4-dihydropyrazol-2-yl]phenyl]sulfonylethyl acetate
Appearance: Powder/yellowish
Specific details on test material used for the study:
Name: 2-[4-[5-(4,5-dichloro-2-methylphenyl)-3,4-dihydropyrazol-2-yl]phenyl]sulfonylethyl acetate
Appearance: Powder/yellowish

Reagents

Reagent:
buffer solutions

Titration of acidity and alkalinity

Details on titrant used:
The pH-electrode was calibrated with commercial available buffer solutions (Certipur, Merck at pH 4, 7 and 9) before.

Results and discussion

pH value
Key result
pH value:
6.5

Applicant's summary and conclusion

Conclusions:
The pH of 2-[4-[5-(4,5-dichloro-2-methylphenyl)-3,4-dihydropyrazol-2-yl]phenyl]sulfonylethyl acetate at 10% in water is 6.5 (according to OECD 122 and DIN 19268:2007-05).
Executive summary:

The pH of 2-[4-[5-(4,5-dichloro-2-methylphenyl)-3,4-dihydropyrazol-2-yl]phenyl]sulfonylethyl acetate at 10% in water is 6.5 (according to OECD 122 and DIN 19268:2007-05).