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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Endpoint:
skin sensitisation: in vivo (non-LLNA)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Year:
1993
Report date:
1993

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: OECD 406 (1992); (Meerschweinchen-Maximierungstest (GPMT))
GLP compliance:
yes
Type of study:
guinea pig maximisation test

Test material

Constituent 1
Reference substance name:
Dastib 845
IUPAC Name:
Dastib 845

In vivo test system

Test animals

Species:
other: gpg, Pirbrigth White Bor:DHPW (SPF)
Sex:
male/female

Study design: in vivo (non-LLNA)

Induction
Concentration / amount:
Concentration of test material and vehicle used at induction:
Intradermalen Induktion:

0.1 ml FCA (w/v) in aqua ad iniect.

0.1 ml Prufsubstanz in Maisol (Endkonzentration = 2.5 %)

0.1 ml Prufsubstanz in FCA/aqua (Endkonzentration = 2.5 %)
Aktuelle Induktion:

50 % in Maisol

Concentration of test material and vehicle used for each challenge:
25 %
Challenge
Concentration / amount:
Concentration of test material and vehicle used at induction:
Intradermalen Induktion:

0.1 ml FCA (w/v) in aqua ad iniect.

0.1 ml Prufsubstanz in Maisol (Endkonzentration = 2.5 %)

0.1 ml Prufsubstanz in FCA/aqua (Endkonzentration = 2.5 %)
Aktuelle Induktion:

50 % in Maisol

Concentration of test material and vehicle used for each challenge:
25 %
No. of animals per dose:
Number of animals in test group: 20
Number of animals in negative control group: 20

Results and discussion

In vivo (non-LLNA)

Resultsopen allclose all
Reading:
1st reading
Hours after challenge:
24
Group:
test chemical
Dose level:
25 %
No. with + reactions:
20
Total no. in group:
20
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 24.0. Group: test group. Dose level: 25 %. No with. + reactions: 20.0. Total no. in groups: 20.0.
Reading:
2nd reading
Hours after challenge:
48
Group:
test chemical
Dose level:
25 %
No. with + reactions:
17
Total no. in group:
20
Remarks on result:
other: Reading: 2nd reading. . Hours after challenge: 48.0. Group: test group. Dose level: 25 %. No with. + reactions: 17.0. Total no. in groups: 20.0.
Reading:
1st reading
Hours after challenge:
24
Group:
negative control
Dose level:
25 %
No. with + reactions:
1
Total no. in group:
20
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 24.0. Group: negative control. Dose level: 25 %. No with. + reactions: 1.0. Total no. in groups: 20.0.
Reading:
2nd reading
Hours after challenge:
48
Group:
negative control
Dose level:
25 %
No. with + reactions:
1
Total no. in group:
20
Remarks on result:
other: Reading: 2nd reading. . Hours after challenge: 48.0. Group: negative control. Dose level: 25 %. No with. + reactions: 1.0. Total no. in groups: 20.0.

Any other information on results incl. tables

Maximum concentration not causing irritating effects in preliminary test: 25 %

Signs of irritation during induction:
Eine Endkonzentration von 5 % verursachte Schwellung und
Rotungen in einem Rangessfinding Test. Eine geeignete
Konzentration fur die Hauptuntersuchung war 2.5 %.

Evidence of sensitisation of each challenge concentration:
Nach Auslosung (t-24 nach Entfernung des Pflasters) zeigten
alle Versuchstiere (10/Geschlecht) eine allergische
Reaktion, sei es durch Odeme und/oder Hautrotungen. 48
Stunden nach Entfernung des Pflasters reagierten 8 mannliche
und 9 weibliche Tiere.

Applicant's summary and conclusion

Interpretation of results:
other: irritant