Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2003
Report date:
2003

Materials and methods

Principles of method if other than guideline:
Perrins's calculation method
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
448-050-6
EC Name:
-
Cas Number:
444065-11-6
Molecular formula:
C41 H57 N5 O8
IUPAC Name:
2,6-di-tert-butyl-4-methylcyclohexyl 5-{[bis(2-ethoxy-2-oxoethyl)carbamoyl]oxy}-2-(4-tert-butylphenyl)-6-cyano-1H-pyrrolo[1,2-b][1,2,4]triazole-7-carboxylate

Results and discussion

Dissociating properties:
yes
Dissociation constantopen allclose all
No.:
#1
pKa:
1.5
Remarks on result:
other: 1,2,4-triazole, calculated as pKa of the corresponding acid
No.:
#2
pKa:
-3.9
Remarks on result:
other: RCON(R)2, calculated as pKa of the corresponding acid

Applicant's summary and conclusion