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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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
Study period:
06.02.1978 - 16.03.1978
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study without GLP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1978
Report date:
1978

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: FDA guideline (federal register Vol. 38, No. 187, p. 27019, 1973)
Principles of method if other than guideline:
Patch-Test, okklusiv
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2-[(p-aminophenyl)sulphonyl]ethyl hydrogensulphate
EC Number:
219-669-7
EC Name:
2-[(p-aminophenyl)sulphonyl]ethyl hydrogensulphate
Cas Number:
2494-89-5
Molecular formula:
C8H11NO6S2
IUPAC Name:
[2-(4-aminobenzenesulfonyl)ethoxy]sulfonic acid
Details on test material:
IUCLID5 Test substance: as prescribed by 1.1 - 1.4

Test animals

Species:
rabbit
Strain:
Himalayan
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Hoechst AG (HIMK (SPFWiga))
- Age at study initiation: months
- Weight at study initiation: 1.5 - 2.0 kg
- Housing: single
- Diet (ad libitum): Mischfutter ERKA 8300
- Water (ad libitum): tap water from automated supply
- Acclimation period: NA

Test system

Type of coverage:
semiocclusive
Preparation of test site:
shaved
Vehicle:
unchanged (no vehicle)
Controls:
other: comparison to untreated skin
Amount / concentration applied:
500 mg pasted with 0.25 ml of 0.9 % NaCl-solution
Duration of treatment / exposure:
24 hours
Observation period:
72 hours
Number of animals:
6
Details on study design:
TEST SITE
- Area of exposure: 2.5x2.5 cm²
- Type of wrap if used: occlusive bandage

REMOVAL OF TEST SUBSTANCE
- Washing (if done): water
- Time after start of exposure: 24 h

EVALUATION TIME:
immediatetly, 24, 48 hours after removal of bandage

SCORING SYSTEM: according to test guideline

Results and discussion

In vivo

Results
Irritation parameter:
overall irritation score
Basis:
mean
Time point:
other: 24 and 72 hours
Score:
0.3
Max. score:
8
Reversibility:
fully reversible

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: US CPSC / US FDA
Conclusions:
Classification: not irritating
Executive summary:

Testing of para - Base - Ester for skin irritation in rabbits according to FDA guideline (federal register Vol. 38, No. 187, p. 27019, 1973) . According to results the test item has not to be classified as skin irritant.