Registration Dossier

Administrative data

Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Start: 2000-01-13 End: 2000-02-10
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2000
Report date:
2000

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
Qualifier:
according to guideline
Guideline:
EU Method A.6 (Water Solubility)
GLP compliance:
yes
Type of method:
column elution method

Test material

Constituent 1
Chemical structure
Reference substance name:
4-(2-{2,4-dihydroxy-5-[2-(4-hydroxyphenyl)propan-2-yl]phenyl}propan-2-yl)phenyl 6-(-lambda5-diazynylidene)-5-oxo-5,6-dihydronaphthalene-1-sulfonate
Molecular formula:
C34H30N2O7S
IUPAC Name:
4-(2-{2,4-dihydroxy-5-[2-(4-hydroxyphenyl)propan-2-yl]phenyl}propan-2-yl)phenyl 6-(-lambda5-diazynylidene)-5-oxo-5,6-dihydronaphthalene-1-sulfonate
Constituent 2
Chemical structure
Reference substance name:
4-[2-(2,4-dihydroxy-5-{2-[4-({[6-(-lambda5-diazynylidene)-5-oxo-5,6-dihydronaphthalen-1-yl]sulfonyl}oxy)phenyl]propan-2-yl}phenyl)propan-2-yl]phenyl 6-(-lambda5-diazynylidene)-5-oxo-5,6-dihydronaphthalene-1-sulfonate
Molecular formula:
C44H34N4O10S2
IUPAC Name:
4-[2-(2,4-dihydroxy-5-{2-[4-({[6-(-lambda5-diazynylidene)-5-oxo-5,6-dihydronaphthalen-1-yl]sulfonyl}oxy)phenyl]propan-2-yl}phenyl)propan-2-yl]phenyl 6-(-lambda5-diazynylidene)-5-oxo-5,6-dihydronaphthalene-1-sulfonate
Test material form:
solid
Details on test material:
Batch PW-9F-29

Results and discussion

Water solubilityopen allclose all
Water solubility:
<= 0.05 mg/L
Conc. based on:
other: mono-ester
Temp.:
20 °C
pH:
8.9
Water solubility:
< 0.04 mg/L
Conc. based on:
other: di-ester
Temp.:
20 °C
pH:
8.9

Applicant's summary and conclusion

Conclusions:
The water solubility of the substance at 20.0 ± 0.5°C based on the mono-ester and di-ester is ≤ 0.05 mg/l and < 0.04 mg/l, respectively.