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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

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Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Justification for type of information:
data from experimental reports following standard testing procedures

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2013

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Principles of method if other than guideline:
To assess the dermal irritation parameter of the test chemical in accordance with OECD 404
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
3-acetamido-5-amino-4-hydroxybenzenesulphonic acid
EC Number:
254-879-2
EC Name:
3-acetamido-5-amino-4-hydroxybenzenesulphonic acid
Cas Number:
40306-75-0
Molecular formula:
C8H10N2O5S
IUPAC Name:
3-acetamido-5-amino-4-hydroxybenzenesulfonic acid
Test material form:
solid: crystalline
Details on test material:
- Name of test material : 3-acetamido-5-amino-4-hydroxybenzenesulphonic acid
- Molecular formula : C8H10N2O5S
- Molecular weight : 246.24 g/mole
- InChI: 1S/C8H10N2O5S/c1-4(11)10-7-3-5(16(13,14)15)2-6(9)8(7)12/h2-3,12H,9H2,1H3,(H,10,11)(H,13,14,15)
- Substance Type: Organic
- Physical State: Solid
Specific details on test material used for the study:
- Name of test material : 3-acetamido-5-amino-4-hydroxybenzenesulphonic acid
- Molecular formula : C8H10N2O5S
- Molecular weight : 246.24 g/mole
- InChI: 1S/C8H10N2O5S/c1-4(11)10-7-3-5(16(13,14)15)2-6(9)8(7)12/h2-3,12H,9H2,1H3,(H,10,11)(H,13,14,15)
- Substance Type: Organic
- Physical State: Solid

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
Age:10 to 12 weeks
Sex:Female
Body weight range: 1.80kg±200g
Identification :By cage tag and corresponding colour body marking
No. of animals :Three
Acclimatization:The healthy rabbits selected for study was acclimatized to standard laboratory condition for one week in experimental room under Veterinary examination.
Randomization:After acclimatization and Veterinary examination three females were randomly selected.

Test system

Type of coverage:
open
Preparation of test site:
shaved
Vehicle:
unchanged (no vehicle)
Controls:
not specified
Amount / concentration applied:
The 0.5 gm of test compound was applied on a small area (approximately 6 cm2) of intact skin site.
Duration of treatment / exposure:
single exposure
Observation period:
14 days
Number of animals:
3
Details on study design:
The animals were prepared 24 hrs prior to application of test product. The furs from the dorsal area of trunk of animals were removed with electric clippers exposing an area measuring approximately 6 cm2 of body surface area of animal. The care was taken such that abrasion penetrated the Stratum corneum only and not dermis.

Results and discussion

In vivo

Results
Irritation parameter:
primary dermal irritation index (PDII)
Basis:
mean
Time point:
14 d
Score:
0.5
Remarks on result:
no indication of irritation
Irritant / corrosive response data:
no irritation was observed

Applicant's summary and conclusion

Interpretation of results:
other: not irritating
Conclusions:
The result obtained from present study reveals that the test compound 3-acetamido-5-amino-4-hydroxybenzenesulphonic acid was non irritant to skin of the New Zealand white rabbits when applied to the shaven back intact skin.
Executive summary:

A dermal irritation study was conducted on New Zealand white rabbits in accordance with OECD 404 to assess the irritation parameter of 3-acetamido-5-amino-4-hydroxybenzenesulphonic acid. 3 female New Zealand White rabbits were used for the study.The animals were prepared 24 hrs prior to application of test product. The furs from the dorsal area of trunk of animals were removed with electric clippers exposing an area measuring approximately 6 cm2 of body surface area of animal. The care was taken such that abrasion penetrated the Stratum corneum only and not dermis. 0.5 gm of test compound was applied on a small area (approximately 6 cm2) of intact skin site.The rabbits were observed for signs of irritation till 14 days.

The result obtained from present study reveals that the test compound 3-acetamido-5-amino-4-hydroxybenzenesulphonic acid was non irritant to skin of the New Zealand white rabbits when applied to the shaven back intact skin.

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