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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Toxicity to reproduction

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Administrative data

Endpoint:
toxicity to reproduction
Remarks:
other: Read-across
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: guidance document on the grouping of chemicals (Joint meeting of the chemicals committee and the working party on chemical, pesticides and biotechnology, ENV/JM/MONO(2007)28)
Principles of method if other than guideline:
The endpoint information of the Valacyclovir, selected as source chemical or analog, was used to predict the same endpoints for the target chemical, i.e. L-Valine, N-[(1,1-dimethylethoxy)carbonyl]-, 2-[(2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)methoxy]ethyl ester, which was considered to be similar to Valacyclovir on the basis of structural similarity.
GLP compliance:
no

Test material

Constituent 1
Reference substance name:
124832-26-4
EC Number:
603-015-6
Cas Number:
124832-26-4
IUPAC Name:
124832-26-4
Constituent 2
Reference substance name:
Valacyclovir
IUPAC Name:
Valacyclovir
Details on test material:
- Name of test material (as cited in study report): Valacyclovir
- Molecular formula (if other than submission substance): C13H20N6O4

Results and discussion

Results: P0 (first parental generation)

Details on results (P0)

It's not expected that Valacyclovir impairs fertility or reproduction in mice.

Overall reproductive toxicity

Reproductive effects observed:
not specified

Any other information on results incl. tables

Result from read-across: not reproductive toxic.

Applicant's summary and conclusion

Conclusions:
It is concluded that the two structures are similar enough with respect to the physicochemical properties relevant to treproductive toxicity to support the read-across.
Therefore the experimental test result of the source chemical can be read-across to L-Valine, N-[(1,1-dimethylethoxy)carbonyl]-, 2-[(2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)methoxy]ethyl ester, concluding that L-Valine, N-[(1,1-dimethylethoxy)carbonyl]-, 2-[(2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)methoxy]ethyl ester is NOT REPRODUCTIVE TOXIC .