Reaction mass of 2-hydroxyethyl oleate, oleic acid, and 2-hydroxyethyl palmitate

Acute Toxicity: oral

Administrative data

Endpoint:

acute toxicity: oral

Type of information:

experimental study

Adequacy of study:

key study

Study period:

17 Feb - 02 Mar 1988

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1988

Report date:

1988

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method B.1 (Acute Toxicity (Oral))

Deviations:

no

GLP compliance:

yes

Test type:

standard acute method

Limit test:

yes

Test material

Test material information

Constituent 1

Reference substance name:

Decanoic acid, mixed diesters with octanoic acid and propylene glycol

EC Number:

271-516-3

EC Name:

Decanoic acid, mixed diesters with octanoic acid and propylene glycol

Cas Number:

68583-51-7

Test animals

Species:

rat

Strain:

Wistar

Sex:

male/female

Details on test animals or test system and environmental conditions:

TEST ANIMALS
- Source: Winkelmann, Borchen, Germany.
- Fasting period before study: 16 h
- Housing: 5 animals of the same sex per cage in Makrolon 3 cages.
- Litter: soft wood granulate.
- Diet: Altromin-Haltungsdiät 1324 (Altromin GmbH, Lage, Germany), ad libitum
- Water: Tap water, ad libitum
- Acclimation period: 8 days
- Identification of the test animals: Group identification by cage labelling, individual identification by labelling with saturated picric acid solution.

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20-25
- Humidity (%): 45-60
- Photoperiod (hrs dark / hrs light): 12/12

Administration / exposure

Route of administration:

oral: gavage

Vehicle:

peanut oil

Details on oral exposure:

VEHICLE
- Concentration in vehicle: 20% (w/v)
- Amount of vehicle (if gavage): 10 mL/kg bw

MAXIMUM DOSE VOLUME APPLIED: 10 mL/kg bw

Doses:

2000 mg/kg bw

No. of animals per sex per dose:

5

Control animals:

no

Remarks:

Not required.

Details on study design:

- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: At day of application, animals were observed several times, thereafter 2 times per day until Day 14. Weighing was performed one day before application, directly before application, 48 h after application and at Day 7 and Day 14 after application.
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, gross necropsy and body weight.

Results and discussion

Effect levels

Key result

Sex:

male/female

Dose descriptor:

LD50

Effect level:

> 2 000 mg/kg bw

Based on:

test mat.

Mortality:

No mortality occurred during the study period.

Clinical signs:

other: No clinical signs of toxicity were observed at the end of the 14-day observation period.

Gross pathology:

Males: tightly filled urinary bladder in 1/5 males 14 days after application. 4/5 males showed no clinical signs of toxicity at the end of the 14-day observation period.
Females: 4/5 females showed no clinical signs of toxicity. In 1/5 females a mild hydrometra was observed. According to the author the hydrometra was not due to the substance treatment.

Any other information on results incl. tables

Table 1. Mean body weights in g.

Doses	2000 mg/kg bw	2000 mg/kg bw
- 1 d	185	168
0 d	173	159
2 d	194	172
7 d	213	172
14 d	239	182
body weight gain	54	14

d = day of study

Applicant's summary and conclusion

Interpretation of results:

GHS criteria not met

Conclusions:

The oral LD50 is greater than 2000 mg/kg bw.

Executive summary:

In an acute toxicity study the substance was administered to Wistar rats (5 animals) by oral gavage at a dose level of 2000 mg/kg bw (single administration). There were no mortalities or signs of clinical toxicity, mean body weight gain was as expected and no abnormalities found at macroscopic post-mortem examination. The oral LD50 is greater than 2000 mg/kg bw.