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Registration Dossier
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EC number: 425-220-8 | CAS number: 5945-33-5
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- The data comes from a report of NATIONAL INDUSTRIAL CHEMICALS NOTIFICATION AND ASSESSMENT SCHEME (NICNAS), which is administered by the National Occupational Health and Safety Commission (NOHSC) of Australian Commission. Also the physico-chemical properties were determined using OECD test methods.
Data source
Reference
- Reference Type:
- review article or handbook
- Title:
- Phosphoric acid, (1-methylethylidene) di-4,1-phenylene tetraphenyl ester (Fyrolflex BDP)
- Author:
- National Occupational Health and Safety Commission (Australia)
- Year:
- 2 000
- Bibliographic source:
- In:NATIONAL INDUSTRIAL CHEMICALS NOTIFICATION AND ASSESSMENT SCHEME
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- Principles of method if other than guideline:
- no data
- GLP compliance:
- not specified
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- -
- EC Number:
- 425-220-8
- EC Name:
- -
- Cas Number:
- 5945-33-5
- Molecular formula:
- C39H34O8P2
- IUPAC Name:
- (1-methylethylidene)di-4,1-phenylenetetraphenyl diphosphate
Constituent 1
Results and discussion
Partition coefficient
- Type:
- log Pow
- Partition coefficient:
- >= 6
- Temp.:
- 25 °C
- pH:
- 5.5 - 6
- Details on results:
- The retention time of the test compound on C18 columns was compared with those for five reference compounds of known Pow. The reference compounds included thiourea, bromobenzene, diphenyl, dibenzyl and 2,4-DDT.
Any other information on results incl. tables
The retention times of the substance on the column were such that all components have log Pow > 6, indicating high affinity for the oil phase. Large values of log Pow could be expected for the substance as it contains a high proportion of aromatic or aliphatic hydrocarbon.
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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