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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7840 (Water Solubility)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: Currenta internal SOP 00190 Version 3
Version / remarks:
This SOP is based on the Council Regulations EC No 440/2008, Guideline Part A – Methods for the Determination of the physical-chemical properties, A.6, “Water solubility” and to the OECD guideline for testing of chemicals No: 105 “Water solubility“.
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: Currenta internal SOP 00178 Version 3 for the determination of the pH-value
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
column elution method

Test material

Constituent 1
Chemical structure
Reference substance name:
6-bromo-3-methyl-3H-dibenz[f,ij]isoquinoline-2,7-dione
EC Number:
201-381-8
EC Name:
6-bromo-3-methyl-3H-dibenz[f,ij]isoquinoline-2,7-dione
Cas Number:
81-85-6
Molecular formula:
C17H10BrNO2
IUPAC Name:
6-bromo-3-methyl-3H-naphtho[1,2,3-de]quinoline-2,7-dione

Results and discussion

Water solubility
Key result
Water solubility:
0.071 mg/L
Conc. based on:
test mat.
Temp.:
20 °C
pH:
>= 6.3 - <= 7.5
Remarks on result:
other: mean value of both columns

Applicant's summary and conclusion

Conclusions:
The GLP study was performed according to OPPTS 830.7840 without deviations and therefore reliability of Klimisch 1 has been assigned. The water solubility has been determined to be 0.071 mg/L (insoluble) at 20 °C and pH 6.3 - 7.5.
Executive summary:

The water solubility of the test item pyridon was determined with the column elution method at 20 °C according to OPPTS 830.7840. The concentration of the test item in the aqueous test solutions was determined by HPLC analysis. The water solubility of the test item is stated as: 0.071 mg/L. Difference between both columns: 17 %; the validity criterion (mean of both determinations should not differ by more than 30 %) was met. The substance is insoluble in water.