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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
acute toxicity: oral
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:
1967
Report date:
1967

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Deviations:
yes
Remarks:
only 7 days observation period
GLP compliance:
no
Test type:
standard acute method
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
4-morpholinecarbaldehyde
EC Number:
224-518-3
EC Name:
4-morpholinecarbaldehyde
Cas Number:
4394-85-8
Molecular formula:
C5H9NO2
IUPAC Name:
morpholine-4-carbaldehyde
Details on test material:
Please refer to the section "Confidential details on test material"

Test animals

Species:
rat
Strain:
other: US
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Weight at study initiation: males: 172-270 g; females: 124-206 g
- no further data


ENVIRONMENTAL CONDITIONS
- no data

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
water
Remarks:
with Traganth
Details on oral exposure:
VEHICLE
- Concentration in vehicle: 30 % v/v
- Amount of vehicle: 6.68, 8.33, 10.66 and 21.4 mL/kg bw of the 30 % test item solution
- Justification for choice of vehicle: The test substance was soluble in water


MAXIMUM DOSE VOLUME APPLIED:
- 6.68, 8.33, 10.66 and 21.4 mL/kg bw of the 30 % solution
Doses:
2285, 2875, 3657, 7314 mg/kg bw (under consideration of absolute density 1.1429 g/cm3)
No. of animals per sex per dose:
- 5 rats per sex and dose
Control animals:
no
Details on study design:
- Duration of observation period following administration: 7 days
- Frequency of observations and weighing: not specified
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs
Statistics:
no data

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 7 314 mg/kg bw
Based on:
test mat.
Remarks on result:
other: reported as > 6.4 mL/kg bw
Mortality:
No deaths occured in any dose group.
Clinical signs:
other: Animals showed a slightly disturbed general condition and ruffled fur within the first days of observation. All clinical signs ceased from day 6.
Gross pathology:
No substance related abnormalities were detected after necropsy.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Executive summary:

Based on the results observed and by applying the evaluation criteria it was concluded that N-formylmorpholine don´t need to be classified as toxic after single oral application according to Regulation 1272/2008/EC. (BASF, 1967)