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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Acute Toxicity: inhalation

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Administrative data

Endpoint:
acute toxicity: inhalation
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1974-1975
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: US study, brief summary report available

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1975
Report date:
1975

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
The dust was generated by passing a stream of clean, dry air (-40°C dew-point) through a Ferris wheel generator containing the undiluted test material and into the test material. 4 hours exposure followed by 14 days observation period.
GLP compliance:
not specified
Test type:
standard acute method
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Anthraquinone
EC Number:
201-549-0
EC Name:
Anthraquinone
Cas Number:
84-65-1
Molecular formula:
C14H8O2
IUPAC Name:
9,10-dihydroanthracene-9,10-dione
Details on test material:
A.Q. Rec. Dry, 234/74

Test animals

Species:
rat
Strain:
other: BLU: (LE)
Sex:
male/female

Administration / exposure

Route of administration:
inhalation: dust
Type of inhalation exposure:
whole body
Vehicle:
clean air
Analytical verification of test atmosphere concentrations:
not specified
Duration of exposure:
ca. 4 h
Concentrations:
244,0 mg/m3 air (maximum attainable concentration)
No. of animals per sex per dose:
5
Control animals:
not specified

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LC50
Effect level:
>= 244 mg/m³ air
Based on:
not specified
Exp. duration:
4 h
Mortality:
no
Clinical signs:
other: There were no untoward reactions during exposure or the 14-day observation period which followed.
Body weight:
The average two-week body weight gains were within the normal limits.
Gross pathology:
Necropsy, performed on all rats at the end of observation period, did not reveal any gross pathologic alterations.

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: not specified