Fatty acids, C16-18, 1,2-ethanediylbis(oxy-2,1-ethanediyl) esters

Acute Toxicity: oral

Administrative data

Endpoint:

acute toxicity: oral

Type of information:

migrated information: read-across from supporting substance (structural analogue or surrogate)

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Comparable to guideline study with acceptable restrictions. Analytical purity of test substance not reported, lack of experimental details.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1982

Report date:

1982

Materials and methods

Test guideline

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 401 (Acute Oral Toxicity)

Deviations:

yes

Remarks:

analytical purity of test substance not reported, lack of experimental details

GLP compliance:

no

Test type:

standard acute method

Limit test:

yes

Test material

Test material information

Constituent 1

Reference substance name:

2-hydroxyethyl stearate

EC Number:

203-886-9

EC Name:

2-hydroxyethyl stearate

Cas Number:

111-60-4

IUPAC Name:

2-hydroxyethyl stearate

Details on test material:

- Name of test material (as cited in study report): ethylene glycol monostearate
- Analytical purity: no data

Test animals

Species:

rat

Strain:

Wistar

Sex:

male/female

Details on test animals or test system and environmental conditions:

TEST ANIMALS
- Weight at study initiation: 160 g (females), 240 g (males)
- Fasting period before study: 18 h

Administration / exposure

Route of administration:

oral: gavage

Vehicle:

CMC (carboxymethyl cellulose)

Doses:

2000 mg/kg bw

No. of animals per sex per dose:

5

Control animals:

no

Details on study design:

- Duration of observation period following administration: 14 days
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight, histopathology

Results and discussion

Effect levels

Sex:

male/female

Dose descriptor:

LD50

Effect level:

> 2 000 mg/kg bw

Based on:

test mat.

Mortality:

No moratality occurred during the study period.

Clinical signs:

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

Gross pathology:

Necropsy and histopathological examination revealed no substance-related findings.

Any other information on results incl. tables

Table 1: Mean bodyweights during observation time:

	Mean bodyweights in g
	Day 0	Day 2	Day 7	Day 14
Male	236	248	265	283
Female	161	170	176	184

Applicant's summary and conclusion

Interpretation of results:

not classified

Remarks:

Migrated information Criteria used for interpretation of results: EU

Conclusions:

CLP: not classified
DSD: not classified