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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: dermal
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1975
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Not GLP but performed according to a US regulation.

Data source

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

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: 16 CFR 1500.40
GLP compliance:
no
Remarks:
Study performed in 1975
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Acetaldehyde oxime
EC Number:
203-479-6
EC Name:
Acetaldehyde oxime
Cas Number:
107-29-9
Molecular formula:
C2H5NO
IUPAC Name:
acetaldehyde oxime
Details on test material:
- Test material: 50% AAO
- Appearance: clear liquid

Test animals

Species:
rabbit
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Age at study initiation: adult
- Source: selected from healthy, acclimated animals

Administration / exposure

Type of coverage:
not specified
Doses:
0.02, 0.2, 0.43, 0.928, 2.0 g/kg
No. of animals per sex per dose:
5
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations: daily
- Other examinations performed: examination of toxicological and pathological signs

Results and discussion

Effect levelsopen allclose all
Sex:
not specified
Dose descriptor:
LD0
Effect level:
2 000 mg/kg bw
Based on:
test mat.
Remarks on result:
other: LD0 for 50% solution of AAO in water.
Sex:
not specified
Dose descriptor:
LD0
Effect level:
1 000 mg/kg bw
Based on:
act. ingr.
Remarks on result:
other: LD0 for AAO (undilluted)
Gross pathology:
No effects

Applicant's summary and conclusion

Conclusions:
The acute dermal LD50 of acetaldehyde oxime is > 2.0 g/kg body weight when tested on rabbits with intact skin. It produced no gross toxicological or pathological effects.