Propanamide, N-[2-(4-phenoxyphenoxy)ethyl]-

Endpoint summary

Description of key information

LD50 : 3750 mg/kg bw (rats, oral) (equivalent or similar to OECD 401, non-GLP, K, Rel. 2)

Key value for chemical safety assessment

Acute toxicity: via oral route

Link to relevant study records

Reference

Endpoint:

acute toxicity: oral

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1987

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

comparable to guideline study with acceptable restrictions

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 401 (Acute Oral Toxicity)

Deviations:

yes

Remarks:

Details on test item, housing conditions are missing

GLP compliance:

no

Test type:

acute toxic class method

Limit test:

no

Specific details on test material used for the study:

Appearance: brown-beige solid
Test item name (as cited in the report): para phenoxy phenoxy ethyl propionamid
Molecular weight: 286
Melting point: 110 °C
Not soluble in water, PEG400 and oilve oil

Species:

rat

Strain:

Wistar

Sex:

male

Details on test animals or test system and environmental conditions:

Initial weight: 210 ± 10 g

Route of administration:

oral: gavage

Vehicle:

DMSO

Remarks:

20% (w/v)

Details on oral exposure:

The test item was not soluble in water, PEG400 and oilve oil. It was diluted in DMSO at 20 % (200 mg/mL)

Doses:

0.5, 1, 2, 3, 3.5, and 4 g/kg bw

No. of animals per sex per dose:

10/dose

Control animals:

no

Details on study design:

Animals were fasted at 5 PM the day before administration and they are fed again 3 h after administration.
Administration occured at 10 AM.
Animals were observed daily for 14 days.
Survivals are weighed the 7th day after administration.
Macroscopic examination was performed at sacrifice or in prematurely dead animals.

Key result

Sex:

male

Dose descriptor:

LD50

Effect level:

3 750 mg/kg bw

Based on:

test mat.

Mortality:

1/10 at 3 g/kg bw (on Day 1), 3/10 at 3.5 g/kg bw (on Day 2) and 7/10 (on Day 2) at 4 g/kg bw

Clinical signs:

other: No data

Gross pathology:

No findings

Other findings:

None

Interpretation of results:

Category 5 based on GHS criteria

Conclusions:

Under the test conditions, a LD50 of 3750 mg/kg bw was found in male Wistar rats with test item in DMSO (20 % (w/v))

Executive summary:

Groups of 10 fasted male Wistar rats were administered para phenoxy phenoxy ethyl propionamid in DMSO (20% (w/v)) at 0.5, 1, 2, 3, 3.5 and 4 g/kg bw by gavage. They were observed for 14 days and weighed on Day 7. 1 rat/10 at 3 g/kg bw (on Day 1), 3 rats/10 at 3.5 g/kg bw (on Day 2) and 7 rats/10 (on Day 2) at 4 g/kg bw died. No macroscopic findings were recorded in dead animals or survivals. Under the test conditions, a LD50 of 3750 mg/kg bw was determined. Therefore the substance is not classified according to CLP regulation and is classified category 5 (H303) according to GHS.

Endpoint conclusion

Endpoint conclusion:

adverse effect observed

Dose descriptor:

LD50

Value:

3 750 mg/kg bw

Quality of whole database:

Adequate for hazard assessment

Acute toxicity: via inhalation route

Endpoint conclusion

Endpoint conclusion:

no study available

Acute toxicity: via dermal route

Endpoint conclusion

Endpoint conclusion:

no study available

Additional information

Groups of 10 fasted male Wistar rats were administered para phenoxy phenoxy ethyl propionamid in DMSO (20% (w/v)) at 0.5, 1, 2, 3, 3.5 and 4 g/kg bw by gavage. They were observed for 14 days and weighed on Day 7. 1 rat/10 at 3 g/kg bw (on Day 1), 3 rats/10 at 3.5 g/kg bw (on Day 2) and 7 rats/10 (on Day 2) at 4 g/kg bw died. No macroscopic findings were recorded in dead animals or survivals. Under the test conditions, a LD50 of 3750 mg/kg bw was determined. Therefore the substance is not classified according to CLP regulation and is classified category 5 (H303) according to GHS.

Justification for classification or non-classification

LD50 of 3750 mg/kg bw was determined in rats by gavage. Therefore the substance is not classified according to CLP regulation and is classified category 5 (H303) according to GHS.