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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1985
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Not in GLP.

Data source

Reference
Reference Type:
publication
Title:
No information
Author:
Hansch C & Leo AJ
Year:
1985
Bibliographic source:
Medchem project.; claremont, ca: pomona college. Issue # 26

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
Principles of method if other than guideline:
Described in Hansch C & Leo AJ (1985)
GLP compliance:
no
Type of method:
shake-flask method to: flask method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
O-acetylsalicylic acid
EC Number:
200-064-1
EC Name:
O-acetylsalicylic acid
Cas Number:
50-78-2
Molecular formula:
C9H8O4
IUPAC Name:
2-acetoxybenzoic acid
Test material form:
solid: crystalline

Results and discussion

Partition coefficient
Type:
log Pow
Partition coefficient:
1.19
Temp.:
20 °C
pH:
7

Applicant's summary and conclusion

Conclusions:
The substance logKow is 1.19