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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable, well documented study report which meets basic scientific principles

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1976
Report date:
1977

Materials and methods

Principles of method if other than guideline:
BASF-Test, see details in remarks on material and methods.
GLP compliance:
no
Test type:
other: Inhalation Risk Test

Test material

Constituent 1
Chemical structure
Reference substance name:
Phthalide
EC Number:
201-744-0
EC Name:
Phthalide
Cas Number:
87-41-2
Molecular formula:
C8H6O2
IUPAC Name:
1(3H)-Isobenzofuranone
Details on test material:
- Name of test material (as cited in study report): Phthalid

Test animals

Species:
rat
Strain:
not specified
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Weight at study initiation: males: 225 g (mean); females: 184 g (mean)

Administration / exposure

Route of administration:
inhalation: vapour
Type of inhalation exposure:
not specified
Vehicle:
other: unchanged (no vehicle)
Analytical verification of test atmosphere concentrations:
no
Duration of exposure:
8 h
Concentrations:
In the row data no substance loss but an increase in substance weight was recorded.
No. of animals per sex per dose:
3
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations: several times on the day of treatment and daily thereafter
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
other: Inhalation Risk Test
Exp. duration:
8 h
Remarks on result:
not determinable because of methodological limitations
Mortality:
No mortality occured.
Clinical signs:
other: No symptoms were observed.
Body weight:
Animals gained normal weight.
Gross pathology:
No abnormalities observed.

Any other information on results incl. tables

The inhalation of a highly saturated vapour-air mixture for 8 h caused no mortality. In the row data no substance loss but an increase in substance weight was recorded.

Applicant's summary and conclusion