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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Study period:
2009
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
other: calculation
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
calculation by using SPARC Performance Automated Reasoning in Chemistry (V 4.2)
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Methenamine
EC Number:
202-905-8
EC Name:
Methenamine
Cas Number:
100-97-0
Molecular formula:
C6H12N4
IUPAC Name:
1,3,5,7-tetraazatricyclo[3.3.1.1³,⁷]decane
Test material form:
solid: crystalline

Results and discussion

Dissociating properties:
yes
Dissociation constant
No.:
#1
pKa:
8.58
Temp.:
20 °C

Any other information on results incl. tables

no remarks

Applicant's summary and conclusion

Conclusions:
By using SPARC Performance Automated Reasoning in Chemistry (V 4.2) the dissociation constant of methenamine was calculated to pKa = 8.58.
Executive summary:

By using SPARC Performance Automated Reasoning in Chemistry (V 4.2) the dissociation constant of methenamine was calculated to pKa = 8.58.