Registration Dossier
Registration Dossier
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EC number: 941-660-8 | CAS number: 741248-63-5
Dissociation constant
Administrative data
- Endpoint:
- dissociation constant
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Experimental phase: 23 February 2011 to 21 April 2011. Report issued 12 July 2011.
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 011
- Report date:
- 2011
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Not stated in the report but considered to be OECD 112 method
- GLP compliance:
- yes
Test material
- Reference substance name:
- Tetra potassium 5,5'-[ethane-1,2-diylbis[thio-1,3,4-thiadiazole-5,2-diyldiazene-2,1-diyl(5-amino-3-tert-buyl-1H-pyrazole-4,1-diyl)]}diisophthalate
- EC Number:
- 700-616-6
- Cas Number:
- 849608-59-9
- Molecular formula:
- C36H32K4N14O8S4
- IUPAC Name:
- Tetra potassium 5,5'-[ethane-1,2-diylbis[thio-1,3,4-thiadiazole-5,2-diyldiazene-2,1-diyl(5-amino-3-tert-buyl-1H-pyrazole-4,1-diyl)]}diisophthalate
- Test material form:
- solid
Constituent 1
Results and discussion
- Dissociating properties:
- not determined
Dissociation constant
- No.:
- #1
- pKa:
- ca. 5.48
- Temp.:
- 22 °C
Any other information on results incl. tables
| Weight sample (g) | pKa measured |
| 0.1083 | 5.48 |
| 0.1953 | 5.63 |
| 0.3083 | 5.57 |
Applicant's summary and conclusion
- Conclusions:
- The test substance pKa was determined to be 5.48 at 22ºC.
- Executive summary:
Introduction
The study was conducted to determine the dissociation constant of the test susbtance. The method was not stated in the report but was considered to be compliant with OECD 112 "Dissociation Constants in Water"
Results and Conclusion
The test substance pKa was determined to be 5.48 at 22ºC.
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