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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
data from handbook or collection of data
Remarks:
NTP reference value

Data source

Reference
Reference Type:
review article or handbook
Title:
Unnamed
Year:
1990
Report date:
1990

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 403 (Acute Inhalation Toxicity)
Version / remarks:
no guideline specified, but result considered by NTP as reliable
Deviations:
not specified
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
[(2-chlorophenyl)methylene]malononitrile
EC Number:
220-278-9
EC Name:
[(2-chlorophenyl)methylene]malononitrile
Cas Number:
2698-41-1
Molecular formula:
C10H5ClN2
IUPAC Name:
[(2-chlorophenyl)methylene]malononitrile
Constituent 2
Chemical structure
Reference substance name:
1,1,1,3,3,3-hexamethyldisilazane
EC Number:
213-668-5
EC Name:
1,1,1,3,3,3-hexamethyldisilazane
Cas Number:
999-97-3
Molecular formula:
C6H19NSi2
IUPAC Name:
1,1,1-trimethyl-N-(trimethylsilyl)silanamine
Constituent 3
Reference substance name:
Cab-0-Sil@ colloidal silica
IUPAC Name:
Cab-0-Sil@ colloidal silica

Results and discussion

Effect levelsopen allclose all
Key result
Sex:
male
Dose descriptor:
LC50
Remarks:
rats
Effect level:
ca. 88 480 other: mg.min/m3
Based on:
test mat.
Key result
Sex:
male
Dose descriptor:
LC50
Remarks:
mouse
Effect level:
ca. 50 010 other: mg.min/m3
Based on:
test mat.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
In rats, NTP (1990) reported LC50 by inhalation in male rats of 88 480 mg x min/m3 and in male mice of 50 010 mg x min/m3