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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
dissociation constant
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The reliability rating is 2 because the data are calculated

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
A Rigorous Test for SPARC's Chemical Reactivity Models: Estimation of More Than 4300 Ionization pKa's
Author:
Hilal, S., Karickhoff, SW, Carreira, LA.
Year:
1995
Bibliographic source:
Quantitative Structure Activity Relationships
Reference Type:
other: Java-based computer model
Title:
SPARC Performs Automatic Reasoning in Chemistry, September 2009 release w4.5.1529-s4.5.1529
Year:
2010
Bibliographic source:
http://ibmlc2.chem.uga.edu/sparc/

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Computer model
GLP compliance:
no
Remarks:
Not applicable, calculation

Test material

Constituent 1
Chemical structure
Reference substance name:
Neodecanoic acid
EC Number:
248-093-9
EC Name:
Neodecanoic acid
Cas Number:
26896-20-8
Molecular formula:
C10H20O2
IUPAC Name:
neodecanoic acid
Constituent 2
Reference substance name:
Neo-Decanoic Acid
IUPAC Name:
Neo-Decanoic Acid
Details on test material:
SMILES Notation: O=C(O)C(C)(CC)CC(C)CCC

Results and discussion

Dissociating properties:
yes
Dissociation constant
No.:
#1
pKa:
4.69
Temp.:
20 °C

Applicant's summary and conclusion

Conclusions:
pKA calculated using SPARC model was 4.69.
Executive summary:

pKA calculated using SPARC model was 4.69.