Fatty acids, vegetable-oil, esters with dipropylene glycol

Eye irritation

Administrative data

Endpoint:

eye irritation: in vivo

Type of information:

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

Adequacy of study:

weight of evidence

Study period:

03 Jun -10 Jun 1988

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: see 'Remark'

Remarks:

GLP-Guideline study, tested with the source substance Decanoic acid, mixed diesters with octanic acid and propylene glycol (CAS No. 68583-51-7). According to the ECHA guidance document “Practical guide 6: How to report read-across and categories (March 2010)”, the reliability was changed from RL1 to RL2 to reflect the fact that this study was conducted on a read-across substance.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1988

Report date:

1988

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 405 (Acute Eye Irritation / Corrosion)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)

Deviations:

no

GLP compliance:

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

IUPAC Name:

68583-51-7

Details on test material:

- Name of test material (as cited in study report): [trade name], Polypropylenglykol-di-Fettsäureester
- Physical state: yellowish liquid
- Analytical purity: no data

Test animals / tissue source

Species:

rabbit

Strain:

other: Kleinrusse Chbb:HM

Details on test animals or tissues and environmental conditions:

TEST ANIMALS
- Source: Thomae, Biberach, Germany
- Age at study initiation: adult animals
- Weight at study initiation: mean 2457.5 g
- Housing: single holding in cage
- Diet: Altromin-Haltungsdiät 2023 (Altomin GmbH, Lage, Germany), ad libitum
- Water: tap water, ad libitum
- Identification of animals: Ear tattoo and cage labelling
- Acclimation period: at least 1 week

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20-21
- Humidity (%): 45-55
- Photoperiod (hrs dark / hrs light): 12/12

Test system

Vehicle:

unchanged (no vehicle)

Controls:

other: the untreated eye served as control

Amount / concentration applied:

TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.1 mL

Duration of treatment / exposure:

single application without washing

Observation period (in vivo):

72 h
Reading time points: 1, 6, 24, 48 and 72 h

Number of animals or in vitro replicates:

4 males

Details on study design:

PRELIMINARY CONTROL:
The eyes of the animals were visually controlled and with fluorescein, 24 h prior to application.

MAIN STUDY:
A control of the treated eye with fluorescein was conducted, 24 h after application and after macroscopic control of the eye.

SCORING SYSTEM: Draize scoring system

TOOL USED TO ASSESS SCORE: fluorescein

Results and discussion

In vivo

Results

Results 1

Irritation parameter:

cornea opacity score

Basis:

mean

Remarks:

out of all 4 animals

Time point:

other: mean over 24, 48 and 72 h

Score:

0

Max. score:

4

Reversibility:

other: reversibility: not applicable

Results 2

Irritation parameter:

iris score

Basis:

mean

Remarks:

out of all 4 animals

Time point:

other: mean over 24, 48 and 72 h

Score:

0

Max. score:

2

Reversibility:

other: reversibility: not applicable

Results 3

Irritation parameter:

conjunctivae score

Basis:

mean

Remarks:

out of all 4 animals

Time point:

other: mean over 24, 48 and 72 h

Score:

0

Max. score:

3

Reversibility:

other: reversibility not applicable

Results 4

Irritation parameter:

chemosis score

Basis:

mean

Remarks:

out of all 4 animals

Time point:

other: mean over 24, 48 and 72 h

Score:

0

Max. score:

4

Reversibility:

other: reversibility: not applicable

Irritant / corrosive response data:

Cornea: no effects were observed during the study period in any animal.
Iris: no effects were observed during the study period in any animal.
Conjunctivae: after 1 h mild redness was observed in 2 of 4 animals. In one of theses animals the effect was fully reversible within 6 h after application. The second animal showed mild redness until 6 h after application being fully reversible after 24 h as well.
Chemosis: no effects were observed during the study period in any animal.
Exudation: no effects were observed during the study period in any animal.

Other effects:

No further local or systemic effects were reported.

Applicant's summary and conclusion

Interpretation of results:

not irritating

Remarks:

Migrated information Criteria used for interpretation of results: EU

Conclusions:

CLP: not classified
DSD: not classified