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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
May 17 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study
Justification for type of information:
The study was conducted in compliance with the Principles of OECD Guidlines for Testing of Chemicals No. 117 'Partition Coefficient 9n-octanol/water), High performance liquid chromatography (HPLC) Method.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
GLP compliance:
not specified
Type of method:
HPLC method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
1-{[2-fluoro-6-(trifluoromethyl)phenyl]methyl}-5-iodo-6-methyl-1,2,3,4-tetrahydropyrimidine-2,4-dione
EC Number:
687-893-6
Cas Number:
1150560-54-5
Molecular formula:
C13H9F4IN2O2
IUPAC Name:
1-{[2-fluoro-6-(trifluoromethyl)phenyl]methyl}-5-iodo-6-methyl-1,2,3,4-tetrahydropyrimidine-2,4-dione
Test material form:
solid: particulate/powder
Specific details on test material used for the study:
Purity: 100%
Batch No.: FTIM31803002
Expiration date: Mar 10, 2019 (retest date)
Physical status: off-white powder

Study design

Analytical method:
high-performance liquid chromatography

Results and discussion

Partition coefficientopen allclose all
Key result
Type:
log Pow
Partition coefficient:
2
Remarks on result:
not measured/tested
Remarks:
Temp and pH parameters not tested.
Key result
Type:
Pow
Partition coefficient:
100
Remarks on result:
not measured/tested
Remarks:
Temp and pH parameters not tested
Details on results:

Reference substances retention time (min):
- Acetanilide: 3.446
- Phenol: 4.138
- Acetophenone: 5.812
- Nitrobenzene: 7.592
- Methyl Benzoate: 8.276
- Ethyl Benzoate: 12.346

Retention time Test item duplicate: 7.182 min, 7.187 min.

Applicant's summary and conclusion

Conclusions:
Based on the test results the Pow of Methyl iodouracil was 100.0, and lgPow was 2.00.
Executive summary:

The partition coefficient (n-octanol/water) of Methyl iodouracil was determined compatible with the principles of OECD guidelines for testing of chemicals no. 117 'partition coefficient (n-octanol/water), high performance liquid chormatography (HPLC) method. Based on the test results the Pow of Methyl iodouracil was 100.0, and lgPow was 2.00.