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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1990
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Scientific and detailed study report

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1990

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
GLP compliance:
yes (incl. QA statement)
Test type:
acute toxic class method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
3-Hexyl-4-hydroxy-6-undecyl-tetrahydro-pyran-2-one
EC Number:
603-981-9
Cas Number:
136890-12-5
Molecular formula:
C22 H42 O3
IUPAC Name:
3-Hexyl-4-hydroxy-6-undecyl-tetrahydro-pyran-2-one

Test animals

Species:
rat
Strain:
other: Fü-Albino Ibm:RORO
Sex:
male/female

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
other: Standard Solvent Vehicle
Doses:
2000 mg/kg
No. of animals per sex per dose:
5
Control animals:
yes

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Based on:
test mat.

Applicant's summary and conclusion

Interpretation of results:
practically nontoxic
Remarks:
Migrated information Criteria used for interpretation of results: EU
Executive summary:

The LD50 of the Orlistat intermediate Ro 18 -8642/000 is greater than 2000 mg/kg bw.