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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

pH

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Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Experimental Result

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other:
Principles of method if other than guideline:
The pH determination of test item 3-(1H-benzimidazol-2-yl)-7-(diethylamino)-2-benzopyrone (CAS No. 27425-55-4) was done as per the test guideline OECD 122.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
3-(1H-benzimidazol-2-yl)-7-(diethylamino)-2-benzopyrone
EC Number:
248-451-4
EC Name:
3-(1H-benzimidazol-2-yl)-7-(diethylamino)-2-benzopyrone
Cas Number:
27425-55-4
Molecular formula:
C20H19N3O2
IUPAC Name:
3-(1H-benzimidazol-2-yl)-7-(diethylamino)-2-benzopyrone
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
CAS No: 27425-55-4
Name of the chemical: 3-(1H-benzimidazol-2-yl)-7-(diethylamino)-2-benzopyrone
Nature of chemical: Organic

Results and discussion

pH value
pH value:
6.21
Temp.:
30 °C
Concentration:
1 vol%
Remarks on result:
other: Near Neutral

Any other information on results incl. tables

The pH of 1% w/v aqueousdispersionof the test item 3-(1H-benzimidazol-2-yl)-7-(diethylamino)-2-benzopyrone (CAS No. 27425 -55 -4 ) was determined to be 6.21 at 30°C.

Applicant's summary and conclusion

Conclusions:
The pH determination of test item 3-(1H-benzimidazol-2-yl)-7-(diethylamino)-2-benzopyrone (CAS No. 27425-55-4)was done following OECD guideline 122. pH of 1% w/v aqueous dispersion was measured with the help of pH meter and it was observed to be 6.21 at 30 °C.
Executive summary:

The pH determination of test item 3-(1H-benzimidazol-2-yl)-7-(diethylamino)-2-benzopyrone (CAS No. 27425-55-4) was done as per the test guideline OECD 122. The pH of the test solution was determined with the help of digitalpH meter. The pH of 1% w/v aqueous dispersion was found to be 6.21 at 30 °C indicating near neutral pH.