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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
in vivo mammalian somatic cell study: cytogenicity / erythrocyte micronucleus
Type of information:
read-across based on grouping of substances (category approach)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: read across category

Data source

Materials and methods

Test material

Constituent 1
Test material form:
liquid

Results and discussion

Test results
Key result
Sex:
male/female
Genotoxicity:
negative
Toxicity:
no effects
Vehicle controls validity:
valid
Positive controls validity:
valid

Any other information on results incl. tables

Table 1: Results from key studies on source chemicals of the category for in vivo mutagenicity tests.

ID#

CAS

In vivo mutagenicity test

Fatty acids, C8-16, 2-
ethylhexyl esters

135800-37-2

Experimental
result: Negative

Fatty acids, coco, 2-ethylhexyl esters

92044-87-6

No data

2-Ethylhexyl palmitate

29806-73-3

No data

Fatty acids, C16-18 and C18-unsatd., 2-
ethylhexyl esters

85049-37-2

No data

Fatty acids, C16-18, 2-ethylhexyl esters

91031-48-0

No data

2-Ethylhexyl oleate

26399-02-0

No data

2-Ethyl hexyl stearate

22047-49-0

No data

 

Similar toxicokinetic behavior and toxicity profile

 

All category members are subject to enzymatic hydrolysis by pancreatic lipases resulting in free acids and alcohol. Based on current literature, when absorbed from intestines and carried through blood stream, fatty acids are oxidized by beta-oxydation pathway in order to provide energy for cell and stored as glycerides esters in fat deposit. The alcohols are primarily metabolized in the liver.

Hence, it can be stated that the members of the category have the same toxicity due to the same metabolic pathways when absorbed in the organisms.

Based on the available data for in vivo micronucleus test, no genotoxicity was observed on the tested source substance including in the category. Hence, according to the physico-chemical similarities between the substances of the category, the registered substance 2-ethylhexyl isostearate could be considered as not genotoxic in in vivo micronucleus test.

Applicant's summary and conclusion

Conclusions:
 Based on the available data for in vivo micronucleus test, no genotoxicity was observed. Hence, the registered substance 2-ethylhexyl isostearate could be considered as not genotoxic in in vivo micronucleus test