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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
dissociation constant
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report date:
2010

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 112 (Dissociation Constants in Water)
Principles of method if other than guideline:
Substance is very slightly soluble in water, saturated solution of Duslin P was used for test
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
N-(cyclohexylthio)phthalimide
EC Number:
241-774-1
EC Name:
N-(cyclohexylthio)phthalimide
Cas Number:
17796-82-6
Molecular formula:
C14H15NO2S
IUPAC Name:
N-(cyclohexylthio)phthalimide
Details on test material:
Purity: 99.24 %wt.
melting point: 92.4 - 92.6°C
Lot No.: 021/09

Results and discussion

Dissociating properties:
no
Dissociation constant
No.:
#1
pKa:
>= 7.83 - <= 8.75
Temp.:
22 °C
Remarks on result:
other: average pKa = 8.23, K=5.89.E-9

Applicant's summary and conclusion