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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Data from secondary source

Data source

Reference
Reference Type:
secondary source
Title:
Dissociation constant data for CAS no. 8003-22-3
Author:
National Advisory Environmental Health Sciences Council
Year:
2015
Bibliographic source:
National Institute of Environmental Health Sciences; USA.gov

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Not available
Principles of method if other than guideline:
Data from National Institute of Environmental Health Sciences
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
1,3-isobenzofurandione, reaction products with methylquinoline and quinoline
EC Number:
232-318-2
EC Name:
1,3-isobenzofurandione, reaction products with methylquinoline and quinoline
Cas Number:
8003-22-3
Molecular formula:
C18H11NO2
IUPAC Name:
2-(quinolin-2-yl)-2,3-dihydro-1H-indene-1,3-dione
Constituent 2
Reference substance name:
1,3-isobenzofurandione, reaction products with methylquinoline and quinolone
IUPAC Name:
1,3-isobenzofurandione, reaction products with methylquinoline and quinolone
Test material form:
other: Solid
Details on test material:
- Name of test material (as cited in study report): D & C Yellow no. 11
- Molecular formula: C18H11NO2
- Molecular weight: 273.29 g/mol
- Substance type: Organic
- Physical state: Reddish-yellow to reddish-brown powder or solid.

Results and discussion

Dissociating properties:
not determined
Dissociation constant
pKa:
5.28
Remarks on result:
other: (amine) (est)

Applicant's summary and conclusion

Conclusions:
The Dissociation Constants of D & C yellow no. 11 was found to be pKa = 5.28 (amine) (est)
Executive summary:

The Dissociation Constants of D & C yellow no. 11 was found to be pKa = 5.28 (amine) (est)