Registration Dossier

Diss Factsheets

Toxicological information

Skin irritation / corrosion

Currently viewing:

Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1969
Report date:
1969

Materials and methods

Principles of method if other than guideline:
BASF-Test, see details in remarks on results.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2-(2-aminoethoxy)ethanol
EC Number:
213-195-4
EC Name:
2-(2-aminoethoxy)ethanol
Cas Number:
929-06-6
Molecular formula:
C4H11NO2
IUPAC Name:
2-(2-aminoethoxy)ethan-1-ol
Test material form:
liquid
Specific details on test material used for the study:
- Name of test material (as cited in study report): Aminodiglykol, 2-(2-Hydroxyaethoxy-)aethylamin
- Physical state: liquid
- Analytical purity: > 99 %

Test animals

Species:
rabbit
Strain:
Vienna White
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Weight at study initiation: 2.46 and 2.88 kg

Test system

Type of coverage:
occlusive
Preparation of test site:
other: clipped
Vehicle:
unchanged (no vehicle)
Controls:
yes, concurrent no treatment
Duration of treatment / exposure:
1 min, 5 min, 15 min or 20 h.
Observation period:
8 days
Number of animals:
2
Details on study design:
TEST SITE
- Area of exposure: 2.5x2.5 cm


REMOVAL OF TEST SUBSTANCE
- Washing (if done): concentrated Lutrol and 50% Lutrol
- Time after start of exposure: 1 min, 5 min and 15 min

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Remarks:
, 1 min exposure
Basis:
mean
Time point:
other: 24 h - 48 h - 72 h
Score:
0.3
Max. score:
4
Reversibility:
fully reversible within: 48 h
Irritation parameter:
erythema score
Remarks:
, 5 min
Basis:
mean
Time point:
other: 24 h - 48 h - 72 h
Score:
0.6
Max. score:
4
Reversibility:
not fully reversible within: 8 days
Remarks on result:
other: scale formation
Irritation parameter:
erythema score
Remarks:
, 15 min exposure
Basis:
mean
Time point:
other: 24 h - 48 h - 72 h
Score:
1.5
Max. score:
4
Reversibility:
not fully reversible within: 8 days
Remarks on result:
other: necrosis
Irritation parameter:
erythema score
Remarks:
20 h exposure
Basis:
mean
Time point:
other: 24 h - 48 h - 72 h
Score:
2.5
Max. score:
4
Reversibility:
not reversible
Remarks on result:
other: full thickness necrosis
Irritation parameter:
edema score
Basis:
mean
Time point:
other: 24 h - 48 h - 72 h
Score:
0
Max. score:
4
Reversibility:
other: no symptoms

Any other information on results incl. tables

Mean erythema score after 24, 48 and 72 h (animal1/2)

 Exposure time 24 h 48 h 72 h mean
 1 min 1/1 0/0 0/0 0.3/0.3
5 min 1/1 0/1 0/1 0.3/1
15 min 1/3 0/3 0/2 0.3/2.7
 20 h 2/3 2/3 3/3 2/3 

Mean edema score after 24, 48 and 72 h (animal1/2)

 Exposure time 24 h 48 h 72 h mean
 1 min 0/0 0/0 0/0 0/0
 5 min 0/0 0/0 0/0 0/0
 15 min 0/0 0/0 0/0 0/0
 20 h 0/0 0/0 0/0 0/0

The application of the test substance caused slight erythema after a 1 and 5 min exposure and moderate to severe erythema after a 15 min or 20 h exposure. After 15 min of exposure one animal developed necrosis 72 post exposure. 20 h of exposure led to anaemic necrosis which developed in 1 animal to hart necrosis at the end of the observation period. The appearing necrosis is considered as a full thickness necrosis.

The original BASF grading was converted into the numerical grading according the OECD Draize system.

Applicant's summary and conclusion

Interpretation of results:
Category 1B (corrosive) based on GHS criteria
Conclusions:
Corrosive
Executive summary:

The application of the test substance caused slight erythema after a 1 and 5 min exposure and moderate to severe erythema after a 15 min or 20 h exposure. After 15 min of exposure one animal developed necrosis 72 h post exposure. 20 h of exposure led to anaemic necrosis which developed in 1 animal to hart necrosis at the end of the observation period.