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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: inhalation
Type of information:
experimental study
Adequacy of study:
disregarded due to major methodological deficiencies
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: Not GLP, non guideline study, no necropsy performed, no details on clinical observations, no body weigt data, no details on test animals, no details on exposure method (i.e. nose only)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1965
Report date:
1965

Materials and methods

Test material

Constituent 1
Chemical structure
Reference substance name:
Methyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
EC Number:
228-985-4
EC Name:
Methyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
Cas Number:
6386-38-5
Molecular formula:
C18H28O3
IUPAC Name:
methyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate

Test animals

Species:
rat
Strain:
Wistar
Sex:
not specified
Details on test animals or test system and environmental conditions:
no data

Administration / exposure

Route of administration:
inhalation
Type of inhalation exposure:
not specified
Details on inhalation exposure:
The coarse crystals were placed in a hopper which fed the crystals into a 6" long teflon screw conveyor turned by a 4 r.p.m. clock motor. The crystals fell into the path of a high speed jet of air, and were thus blown (with some grinding effects) into a 72-liter all glass exposure chamber.
Duration of exposure:
1 h
Concentrations:
217 mg/liter
No. of animals per sex per dose:
10 animals
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days

Results and discussion

Effect levels
Sex:
not specified
Dose descriptor:
LC50
Effect level:
> 217 mg/L air
Mortality:
no deaths occured
Clinical signs:
other: The rats were apparently unaffected both during exposure and a 14 day post exposure observation period.
Body weight:
no data
Gross pathology:
no data

Applicant's summary and conclusion