2,2,2-trichloro-1-phenylethyl acetate

Acute Toxicity: inhalation

Administrative data

Endpoint:

acute toxicity: inhalation

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

Data is from study report

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2012

Report date:

2012

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 403 (Acute Inhalation Toxicity)

Principles of method if other than guideline:

Acute inhalation toxicity of test chemical in Wistar rats.

GLP compliance:

yes

Test type:

standard acute method

Test material

Test material information

Constituent 1

Reference substance name:

2, 2, 2-trichloro-1-phenylethyl acetate

IUPAC Name:

2, 2, 2-trichloro-1-phenylethyl acetate

Constituent 2

Reference substance name:

2,2,2-trichloro-1-phenylethyl acetate

EC Number:

201-972-0

EC Name:

2,2,2-trichloro-1-phenylethyl acetate

Cas Number:

90-17-5

Molecular formula:

C10H9Cl3O2

IUPAC Name:

2,2,2-trichloro-1-phenylethyl acetate

Details on test material:

- Name of test material: 2, 2, 2-trichloro-1-phenylethyl acetate
- Molecular formula: C10H9Cl3O2
- Molecular weight: 267.54
- Substance type: Organic
- Physical state: Solid

Test animals

Species:

rat

Strain:

Wistar

Sex:

male/female

Details on test animals or test system and environmental conditions:

Age : 7 to 9 weeks
Sex : Male and Female
Body weight range : 200 ±20g
Identification : By cage tag and corresponding colour body marking
Acclimatization : Twenty healthy albino rats were selected and acclimatized for standard laboratory condition for period of one week in experimental room under veterinary examination.
Randomization :After acclimatization and veterinary examination all the selected rats randomly divided into two groups of five females and five males.
Nutritional conditions :For feeding conventional Laboratory diets may be used with an unlimited supply of drinking water.

Administration / exposure

Route of administration:

inhalation: aerosol

Vehicle:

other: Distilled water

No. of animals per sex per dose:

10 (5 males and 5 females)

Control animals:

not specified

Details on study design:

Ten healthy wistar albino rats of both sex body weight 200±20 gm were selected for study after acclimatization. The test groups of animals were exposed to aerosol at the concentration of 5 mg/L for period of 4 hrs. After exposure all the animals were closely observed for clinical signs of toxicity at various internals such as 1 hr, 2 hrs, 4 hrs, and 6 hrs on the day of test compound aerosol exposure and later on twice a day throughout the experimentation period of 14 days. The necropsy was performed on all the animals at termination of experiment.
All the albino rats exposed to aerosol at the concentration of 5 mg/L did not show any clinical signs of intoxication. Furthermore, no mortality was observed throughout the period of observation.

Statistics:

No Data Available

Results and discussion

Preliminary study:

No Data Available

Effect levels

Sex:

male/female

Dose descriptor:

LC50

Effect level:

> 5 mg/L air

Based on:

dissolved

Mortality:

The test compound did not elicit any mortality at test concentration viz, 5.0 mg/L throughout the period of observation after exposure.

Clinical signs:

other: The test compound did not elicit any clinical signs of intoxication at the tested aerosol concentration of 5 mg/L observed for the period of 14 days.

Body weight:

The body weight of animals exposed to test compound, observed on day 0th (pre treatment) and day 7th (post treatment) did not differ significantly as compared to day 0th. Whereas, body weight of animals observed on day 14th showed slight increase as compared to day 0 and 7th.

Gross pathology:

Necropsy-:
Necropsy was carried out on all the animals that died during the study or surviving animals were sacrificed at the end of the study to observe any gross pathological changes.

Other findings:

No Data Available

Applicant's summary and conclusion

Interpretation of results:

other: Not classified

Conclusions:

The acute lethal Concentration (LC50) of test chemical in wister albino rats was found to be more than 5 mg/L (>5 mg/L).
Acute toxicity of test chemical to rat by inhalation route indicates that the substance exhibits acute toxicity by the inhalation route in the Category 4 which is relatively non toxic.

Executive summary:

The acute inhalation study of test compound was conducted in albino rat under the OECD-Guideline -403 for testing of chemicals. In limit test, ten healthy wistar albino rats of body weight 200±20 gm were selected for study after acclimatization. The test group of animals was exposed to aerosol at the concentration of 5 mg/L for period of 4 hrs. After exposure all the animals were closely observed for clinical signs of toxicity at various internals such as 1 hr, 2 hrs, 4 hrs, and 6 hrs on the day of test compound aerosol exposure and later on twice a day throughout the experimentation period of 14 days. The necropsy was performed on all the animals at termination of experiment. All the albino rats exposed to aerosol at the concentration of 5 mg/L did not show any clinical signs of intoxication. Furthermore, no mortality was observed throughout the period of observation. The necropsy was performed on all the animals at the termination of study did not show any gross pathological changes. In confirmatory test, after 72 hrs, the result obtained from limit test was confirmed in another 10 animal of both sex at similar concentration following same guideline. Ten healthy wistar albino rats of both sex body weight 200±20 gm were selected for study after acclimatization. The test groups of animals were exposed to aerosol at the concentration of 5 mg/L for period of 4 hrs. After exposure all the animals were closely observed for clinical signs of toxicity at various internals such as 1 hr, 2 hrs, 4 hrs, and 6 hrs on the day of test compound aerosol exposure and later on twice a day throughout the experimentation period of 14 days. The necropsy was performed on all the animals at termination of experiment. All the albino rats exposed to aerosol at the concentration of 5 mg/L did not show any clinical signs of intoxication. Furthermore, no mortality was observed throughout the period of observation. The body weight of animals exposed to test compound, observed on day 0th (pre treatment) and day 7th (post treatment) did not differ significantly as compared to day 0th. Whereas, body weight of animals observed on day 14th showed slight increase as compared to day 0 and 7th. The necropsy was performed on all the animals at the termination of study did not show any gross pathological changes. Hence, the acute lethal Concentration (LC50) of test compound in wister albino rats was considered to be >5 mg/L. The result obtained from present investigation can be concluded that test compound test chemical is acutely non toxic to wistar albino rats.