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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Dissociation constant

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Administrative data

Endpoint:
dissociation constant
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: accepted calculation method

Data source

Reference
Reference Type:
secondary source
Title:
Estimation of pKa
Author:
BASF SE
Year:
2011
Bibliographic source:
ibmlc2.chem.uga.edu/sparc, online query 03 Feb 2011

Materials and methods

Test guideline
Guideline:
other: calculation method
Principles of method if other than guideline:
SPARC: September 2009 release w4.5
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
1,8-diazabicyclo[5.4.0]undec-7-ene
EC Number:
229-713-7
EC Name:
1,8-diazabicyclo[5.4.0]undec-7-ene
Cas Number:
6674-22-2
Molecular formula:
C9H16N2
IUPAC Name:
2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine
Details on test material:
- Name of test material (as cited in study report): 1,8-Diazabicyclo(5,4,0)undecen-7
- Analytical purity: pure

Results and discussion

Dissociating properties:
yes
Dissociation constant
pKa:
12.95
Temp.:
25 °C
Remarks on result:
other: expressed as the acidity of the conjugate acid

Applicant's summary and conclusion