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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: Comparable to guideline study with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1987
Report date:
1987

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 403 (Acute Inhalation Toxicity)
GLP compliance:
not specified
Test type:
fixed concentration procedure
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
482-400-9
EC Name:
-
Cas Number:
138776-88-2
Molecular formula:
C52H56O6P2
IUPAC Name:
9-[(3,3',5,5'-tetra-tert-butyl-2'-{8,10-dioxa-9-phosphatricyclo[9.4.0.0²,⁷]pentadeca-1(11),2(7),3,5,12,14-hexaen-9-yloxy}-[1,1'-biphenyl]-2-yl)oxy]-8,10-dioxa-9-phosphatricyclo[9.4.0.0²,⁷]pentadeca-1(11),2,4,6,12,14-hexaene
Details on test material:
Physical form of substance: Solid
Mass median aerodynamic diameter (for liq.+solid aerosol): 4.1 microns

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female

Administration / exposure

Route of administration:
inhalation
Type of inhalation exposure:
whole body
Vehicle:
other: unchanged (no vehicle)
Analytical verification of test atmosphere concentrations:
yes
Duration of exposure:
4 h
Concentrations:
Comments: Dose concentrations ranged from 4.34 to 5.56 mg/l.  4.74 mg/l was the highest practical mean concentration that could be achieved in the chamber air.
No. of animals per sex per dose:
5
Control animals:
no

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
other: no deaths
Effect level:
4.74 mg/L air
Based on:
test mat.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
Inhalation exposure of male and female rats for 4 hours at a mean concentration of 4.74 mg/l resulted in no deaths or other significant signs of inhalation toxicity during the 14-day observation period.