Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The reliability is rated 2 because the study is well documented and meets generally accepted scientific principles. The results were reviewed for reliability and assessed as valid. Study not conducted under GLP conditions

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Test guideline
Guideline:
other: internal
Principles of method if other than guideline:
A 10% w/w solution (prepared with water and the test item) is filtrated and pH is measured with a pH meter.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
tetrakis{9-[2-(ethoxycarbonyl)phenyl]-3,6-bis(ethylamino)-2,7-dimethylxanthylium} C12-(branched and/or linear)-alkyl-(4-sulfonatophenoxy)benzenesulfonate and oxybis[C12-(branched and/or linear)-alkyl-benzenesulfonate]
EC Number:
700-761-5
Molecular formula:
not applicable
IUPAC Name:
tetrakis{9-[2-(ethoxycarbonyl)phenyl]-3,6-bis(ethylamino)-2,7-dimethylxanthylium} C12-(branched and/or linear)-alkyl-(4-sulfonatophenoxy)benzenesulfonate and oxybis[C12-(branched and/or linear)-alkyl-benzenesulfonate]
Details on test material:
- Name of test material (as cited in study report): Sepisol Fast Red SN
- Substance type: organic salt -UVCB
- Physical state: Dark red powder
- Lot/batch No.: 029244

Results and discussion

pH value
pH value:
7
Temp.:
20 °C
Concentration:
10 g/L

Any other information on results incl. tables

Aspect of the filtrate: colorated

Applicant's summary and conclusion

Conclusions:
A 10% w/w solution was prepared with water and the test item: Sepisol fast Red SN. The pH of such a solution was measured to be 7.0 at 20 °C.