1,1,2,2,3,3,4,4,4-nonafluoro-N-methylbutane-1-sulfonamide

Dissociation constant

Administrative data

Endpoint:

dissociation constant

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

comparable to guideline study with acceptable restrictions

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2002

Materials and methods

Test guideline

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 112 (Dissociation Constants in Water)

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

1,1,2,2,3,3,4,4,4-nonafluoro-N-methylbutane-1-sulfonamide

EC Number:

614-396-3

Cas Number:

68298-12-4

Molecular formula:

C5H4F9NO2S

IUPAC Name:

1,1,2,2,3,3,4,4,4-nonafluoro-N-methylbutane-1-sulfonamide

Results and discussion

Dissociating properties:

yes

Dissociation constant

No.:

#1

pKa:

7.52

Remarks on result:

other: Temperature and pH not provided

Applicant's summary and conclusion

Conclusions:

The pKa for MeFBSA was found to be 7.52.

Executive summary:

The pKa was determined for MeFBSA was determined using automated pH titration. The study was performed comparable to a guideline study but was not GLP compliant and was lacking sufficient documentation; therefore the study is considered reliable with restrictions.