Registration Dossier
Registration Dossier
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EC number: 406-080-7 | CAS number: 83016-70-0 JEFFCAT ZF-10; TEXACAT ZF-10
Dissociation constant
Administrative data
Link to relevant study record(s)
- Endpoint:
- dissociation constant
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- key study
- Study period:
- 2003-02-26 to 2003-05-05
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- accepted calculation method
- Qualifier:
- according to guideline
- Guideline:
- other: The dissocation constant was calculated using computer software manufactured by ACD (www.acdlabs.com)
- GLP compliance:
- yes
- Remarks:
- Report represents data generated in the “spirit of” Good Laboratory Practice. GLP deviations were that a Study Plan was not written, however Study-Specific Supplements were provided to study personnel describing laboratory work in detail.
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): Jeffcat ZF-10, 2-((2-(2-(dimethylamino)ethoxy)ethyl)methyl-amino)-ethanol
- Substance type: amine
- Physical state: Clear colourless liquid
- Analytical purity: 99%
- Lot/batch No.: 324756
- Storage condition of test material: 22 °C in the dark - Dissociating properties:
- yes
- No.:
- #1
- pKa:
- 8.9
- Remarks on result:
- other: No temperature reported
- No.:
- #2
- pKa:
- 7.7
- Remarks on result:
- other: No temperature reported
- Conclusions:
- The largest calculated pKa value of the test substane is 8.9 ± 0.3.
Reference
The calculated pKa's of the test substance are 8.9 ± 0.3 and 7.7 ± 0.5, with the effective (reported) pKa being the largest value of 8.9 ± 0.3.
Description of key information
The pKa values of the test substance were determined to be 8.9±0.3 and 7.7±0.5 based on a calculation method that was judged to be acceptably accurate for amines. The study was considered to be reliable without restrictions (Klimisch 1).
Key value for chemical safety assessment
- pKa at 20°C:
- 8.9
Additional information
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