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EC number: 209-876-0 | CAS number: 596-03-2
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 016
- Report date:
- 2016
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: as mentioned below
- Principles of method if other than guideline:
- The pH of an aqueous solution or dispersion in water is determined with a pH measurement interface equipped with an appropriate electrode system.
- GLP compliance:
- not specified
Test material
- Reference substance name:
- 4',5'-dibromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one
- EC Number:
- 209-876-0
- EC Name:
- 4',5'-dibromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one
- Cas Number:
- 596-03-2
- Molecular formula:
- C20H10Br2O5
- IUPAC Name:
- 4',5'-dibromo-3',6'-dihydroxy-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one
- Test material form:
- other: Solid
- Details on test material:
- - Name of test material (as cited in study report): 4',5'-dibromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one- Molecular formula: C20 H10 Br2 O5- Molecular weight: 490.102 g/mol- Smiles notation: C12(c3c(Oc4c1ccc(c4Br)O)c(c(O)cc3)Br)c1c(cccc1)C(O2)=O-InChl: 1S/C20H10Br2O5/c21-15-13(23)7-5-11-17(15)26-18-12(6-8-14(24)16(18)22)20(11)10-4-2-1-3-9(10)19(25)27-20/h1-8,23-24H- Substance type: Organic- Physical state: Solid- Purity: 98.3%
Constituent 1
Results and discussion
pH value
- pH value:
- 4.66
- Temp.:
- 29 °C
- Concentration:
- 1 other: %w/v
Applicant's summary and conclusion
- Conclusions:
- The mean pH of 1% w/v dispersion of the test item 4',5'-dibromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one (CAS No. 596-03-2 )was 4.66 at 29°C.
- Executive summary:
The pH determination of test item4',5'-dibromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one(CAS No. 596-03-2 )was done following OECD guideline 122. Mean pH of 1% w/v dispersion was measured with the help of pH meter and it was observed to be 4.66 at 29 °C.
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