Registration Dossier

Administrative data

Description of key information

Key value for chemical safety assessment

Skin irritation / corrosion

Link to relevant study records
Reference
Endpoint:
skin irritation: in vivo
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Study period:
1989-04-18 to 1989-05-26
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study without detailed documentation. For read-across justification see Section 13.
Qualifier:
according to
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
GLP compliance:
no
Species:
rabbit
Strain:
other: Small White Russian
Details on test animals and environmental conditions:
TEST ANIMALS
- Source: Fa. Dr. Karl Thomae GmbH, Biberach, Germany
- Age at study initiation: not mentioned
- Weight at study initiation: 2.1 - 2.3 kg
- Housing: single housing in stainless steel cages
- Diet (e.g. ad libitum): K4 complete feed for rabbits, ad libitum, supplied by Ssniff Spezialfutter GmbH, Soest, Germany
- Water (e.g. ad libitum): Drinking water ad libitum
- Acclimation period: 14 days


ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20 ± 1
- Humidity (%): 60 ± 5
- Air changes (per hr): 15
- Photoperiod (hrs dark / hrs light): 12/12
Type of coverage:
semiocclusive
Preparation of test site:
shaved
Vehicle:
unchanged (no vehicle)
Controls:
no
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.5 mL
Duration of treatment / exposure:
4 hours
Observation period:
8 days
Number of animals:
3
Details on study design:
TEST SITE
- Area of exposure: 10 x 10 cm of shaved skin of the dorsal and lateral parts of the trunk of the animals, application of the test substance on a skin area of approx. 6 cm²
- % coverage: not mentioned
- Type of wrap if used: semi-occlusion with a gauze patch (2.5 cm x 2.5 cm). The patch was secured in position by an elastic bandage.

REMOVAL OF TEST SUBSTANCE
- Washing (if done): with warm water
- Time after start of exposure: 4 hours


SCORING SYSTEM: according to OECD guideline 404
Irritation parameter:
erythema score
Basis:
animal #1
Time point:
24/48/72 h
Score:
1
Max. score:
1
Reversibility:
fully reversible within: 6 days
Irritation parameter:
erythema score
Basis:
animal #2
Time point:
24/48/72 h
Score:
2
Max. score:
2
Reversibility:
fully reversible within: 8 days
Irritation parameter:
erythema score
Basis:
animal #3
Time point:
24/48/72 h
Score:
1.7
Max. score:
2
Reversibility:
fully reversible within: 6 days
Irritation parameter:
edema score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
edema score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
not reversible
Irritation parameter:
edema score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0.3
Max. score:
1
Reversibility:
fully reversible within: 48 hours
Irritant / corrosive response data:
AVERAGE SCORE
- Erythema: 1.56
- Edema: 0.11
All animals showed slight to well-defined erythema, and two animals after 1 resp. 24 hours slight edema. Allanimals were free of symptoms after 6 - 8 days.
Other effects:
scurf formation in one animal

Table #: Irritant/corrosive response data for each animal at each observation time up to removal of each animal from the test

Score at time point / Reversibility

Erythema

Edema

Max. score: 4

Max. score: 4

60 min

1/2/1

 0/1/0

24 h

 1/2/2

 0/0/1

48 h

 1/2/2

 0/0/0

72 h

 1/2/1

 0/0/0

Average 24h, 48h, 72h

 1.56

 0.11

Reversibility*)

 c.

 c.

Average time (unit) for reversion

 8 days

 8 days

 

*) Reversibility: c. = completely reversible; n.c. = not completely reversible; n. = not reversible

 

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
All animals showed slight to well-defined erythema, and two animals after 1 resp. 24 hours slight edema. All animals were free of symptoms after 6 - 8 days.
1,2,4-Benzenetricarboxylic acid, mixed decyl and octyl triesters showed a slightly irritant effect on the skin of the test animals with a primary dermal irritation index (PDII) of 1.67/8. The average scores were as follows: Erythema: 1.56, Edema: 0.11
Executive summary:

Skin irritation of a structural analogue of the substance (1,2,4 -Benzenetricarboxylic acid, mixed decyl and octyl triesters) has been investigated in the rabbit using methods in accordance with OECD guideline 404 (12 May 1981).

The tested substance showed a slight irritating effect and the mean Irritation scores derived from the respective erythema and edema scores for the 24, 48 and 72 hours observations were 1.56 (erythema) and 0.11 (oedema).

Endpoint conclusion
Endpoint conclusion:
adverse effect observed (irritating)

Eye irritation

Link to relevant study records
Reference
Endpoint:
eye irritation: in vivo
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Study period:
1989-05-09 to 1989-05-16
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study without detailed documentation. For read-across justification see Section 13.
Qualifier:
according to
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
GLP compliance:
no
Species:
rabbit
Strain:
other: Small White Russian
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Dr. Karl Thomae GmbH, Biberach, Germany
- Age at study initiation: not mentioned
- Weight at study initiation: 2.0 - 2.2 kg
- Housing: conventional, singly in stainless steel cages
- Diet (e.g. ad libitum): K4 complete feed for rabbits ad libitum, supplied by Ssniff Spezialfutter GmbH, Soest, Germany
- Water (e.g. ad libitum): Drinking water ad libitum
- Acclimation period: 14 days


ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20 ± 1
- Humidity (%): 60 ± 5
- Air changes (per hr): 15
- Photoperiod (hrs dark / hrs light): 12/12
Vehicle:
unchanged (no vehicle)
Controls:
other: the untreated eye
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.1 cm³
Duration of treatment / exposure:
72 hours
Observation period (in vivo):
1, 24, 48 and 72 h and 7 days after treatment
Number of animals or in vitro replicates:
3
Details on study design:
REMOVAL OF TEST SUBSTANCE
- Washing (if done): with warm physiological saline
- Time after start of exposure: 72 hours


SCORING SYSTEM: according to Draize (Appraisals of the Safety of Chemicals in Foods, Drugs and Cosmetics, FDA, Austin, Texas 1959, page 51)


TOOL USED TO ASSESS SCORE: ophthalmic lamp, fluorescein 72 hours after administration
Irritation parameter:
cornea opacity score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
cornea opacity score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
cornea opacity score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
iris score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
iris score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
iris score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
conjunctivae score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
conjunctivae score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
conjunctivae score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
chemosis score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
chemosis score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
chemosis score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
0
Reversibility:
fully reversible
Irritant / corrosive response data:
AVERAGE SCORE
- Cornea: 0.0
- Iris: 0.0
- Conjunctivae (Redness): 0.0
- Conjunctivae (Chemosis): 0.0

Other effects:
DESCRIPTION OF LESIONS: 1 hour after application circumcorneal injections in all animals and mild discharge in one animal

Table #: Irritant/corrosive response data for each animal at each observation time of each animal from the test

Score at time point / Reversibility

Cornea

Iris

Conjunctivae

Chemosis

Max. score: 4

Max. score: 2

Max. score: 3

Max. score: 4

60 min

0/0/0

 0/0/0

 1/1/1

 0/0/0

24 h

 0/0/0

 0/0/0

 0/0/0

 0/0/0

48 h

 0/0/0

 0/0/0

 0/0/0

 0/0/0

72 h

 0/0/0

 0/0/0

 0/0/0

 0/0/0

Average 24h, 48h, 72h

 0

 0

 0

 0

Area effected

 -

 -

 -

 -

Maximum average score (including area affected, max 110)

 0

 0

 2.67

 0

Reversibility*)

 -

 -

 c.

 -

Average time (unit) for reversion

 -

 -

 24 hours

 -

 

*) Reversibility: c. = completely reversible; n.c. = not completely reversible; n. = not reversible

 

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
The following mean values, based on the results from the 24 -, 48 - and 72 hour-readings were calculated:
Cornea opacity: 0.0
Iris lesion: 0.0
Redness of conjunctiva: 0.0
Oedema of conjunctiva: 0.0
Based on the result of this study 1,2,4-Benzenetricarboxylic acid, mixed decyl and octyl triesters was judged to be non irritating to eyes and mucosa.
Executive summary:

Eye irritation of a structural analogue of the substance (1,2,4 -Benzenetricarboxylic acid, mixed decyl and octyl triesters) has been investigated in the rabbit using methods in accordance with OECD guideline 405.

Administration of 1,2,4 -Benzenetricarboxylic acid, mixed decyl and octyl triesters caused no irritation reactions of the cornea or iris. Mild conjunctival redness was seen in all animals after 1 hour and mild discharge was noted in one animal. After 24 hours all animals were free of symptoms. The following mean values, based on the results from the 24 -, 48 - and 72 hour-readings were calculated: Cornea opacity: 0.0; Iris lesion: 0.0; Redness of conjunctiva: 0.0; Oedema of conjunctiva: 0.0

Based on the result of this study 1,2,4-Benzenetricarboxylic acid, mixed decyl and octyl triesters was judged to be non irritating to eyes and mucosa.

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed (not irritating)

Respiratory irritation

Endpoint conclusion
Endpoint conclusion:
no study available

Additional information

Information on dermal and ocular irritation are obtained from data on a structural analogue of the substance (1,2,4 -Benzenetricarboxylic acid, mixed decyl and octyl triesters).

Skin irritation was investigated in the rabbit using methods in accordance with OECD guideline 404 and the tested substance showed a slight irritating effect and the mean Irritation scores derived from the respective erythema and edema scores for the 24, 48 and 72 hours observations were 1.56 (erythema) and 0.11 (oedema).

Eye irritation was investigated using methods in accordance with OECD guideline 405 and no irritation reactions of the cornea or iris. Mild conjunctival redness was seen in all animals after 1 hour and mild discharge was noted in one animal. After 24 hours all animals were free of symptoms. The following mean values, based on the results from the 24 -, 48 - and 72 hour-readings were calculated: Cornea opacity: 0.0; Iris lesion: 0.0; Redness of conjunctiva: 0.0; Oedema of conjunctiva: 0.0.


Justification for selection of skin irritation / corrosion endpoint:
Single study available

Justification for selection of eye irritation endpoint:
Single study available

Effects on skin irritation/corrosion: slightly irritating

Justification for classification or non-classification

Classification with regard to skin and eye irritation is not justified based on the observed lack of significant response in the relevant studies and taking into account the provisions laid down in Council Directive 67/548/EEC and CLP (1272/2008/EC).