Reaction mass of nonyl methacrylate and decyl methacrylate and undecyl methacrylate

Acute Toxicity: oral

Administrative data

Endpoint:

acute toxicity: oral

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2017

Report date:

2017

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test type:

acute toxic class method

Test material

Test material information

Constituent 1

Reference substance name:

Reaction mass of nonyl methacrylate and decyl methacrylate and undecyl methacrylate

IUPAC Name:

Reaction mass of nonyl methacrylate and decyl methacrylate and undecyl methacrylate

Test material form:

liquid

Test animals

Species:

rat

Strain:

Wistar

Sex:

female

Details on test animals or test system and environmental conditions:

TEST ANIMALS
- Source: Charles River Wiga GmbH, Germany
- Females (if applicable) nulliparous and non-pregnant: yes
- Age at study initiation: young adult animals (female animals approx. 10 weeks)
- Weight at study initiation: animals of comparable weight (+/- 20% of the mean weight)
- Fasting period before study: at least 16 hours before administration
- Housing: Makrolon cage, type III; single housing
- Diet (e.g. ad libitum): VRF1(P); SDS Special Diets Services, 67122 Altrip, Germany, ad libitum
- Water (e.g. ad libitum): Tap water ad libitum
- Acclimation period: at least 5 days before the beginning of the experimental phase

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22°C +/- 3°C
- Humidity (%): 30 - 70 %
- Air changes (per hr): approx. 10
- Photoperiod (hrs dark / hrs light): 12/12

Administration / exposure

Route of administration:

oral: gavage

Vehicle:

unchanged (no vehicle)

Doses:

2000 mg/kg bw

No. of animals per sex per dose:

3

Control animals:

no

Details on study design:

- Duration of observation period following administration: 14 days
- Other examinations performed: clinical signs, body weight,organ weights, pathology

Results and discussion

Effect levels

Sex:

female

Dose descriptor:

LD50

Effect level:

> 2 000 mg/kg bw

Based on:

test mat.

Mortality:

No mortality occurred in both 2000 mg/kg bw test groups.

Clinical signs:

other: No clinical signs were observed in both 2000 mg/kg bw test groups during clinical examination.

Gross pathology:

There were no macroscopic pathological findings in any animal sacrificed at the end of the observation period (6 females).

Any other information on results incl. tables

Mortality
Dose (mg/kg bw):	2000	2000
Sex:	female	female
Administration:	1	2
No. of animals	3	3
Mortality (animals)	No mortality	No mortality

Applicant's summary and conclusion

Interpretation of results:

GHS criteria not met

Conclusions:

Under the conditions of this study the median lethal dose of C9-11 Methacrylate after oral administration was found to be greater than 2000 mg/kg bw in rats.