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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Sensitisation data (human)

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Administrative data

Endpoint:
sensitisation data (humans)
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Non-Guideline and non-GLP study

Data source

Reference
Reference Type:
publication
Title:
Contact-Group Sensitization to Triphenylmethane Dyes
Author:
Bielicky T. and Novak M.
Year:
1969
Bibliographic source:
Arch Dermatol 1969, Issue: Nov. 100(5), Page: 540-3

Materials and methods

Type of sensitisation studied:
skin
Study type:
study with volunteers
Principles of method if other than guideline:
Patch test on skin with a concentration of 2 %
GLP compliance:
no

Test material

Constituent 1
Reference substance name:
Basic Green 1 sulphate
IUPAC Name:
Basic Green 1 sulphate
Details on test material:
Please refer to IUCLID section 1.

Method

Type of population:
other: patients with observed signs of contact sensitivity towards triphenylmethane
Ethical approval:
not specified
Subjects:
- Number of subjects exposed: 11
Clinical history:
- History of allergy or casuistics for study subject or populations: patients with observed signs of contact sensitivity towards triphenylmethane
Route of administration:
dermal
Details on study design:
TYPE OF TEST USED: patch test ADMINISTRATION- Vehicle / solvent: in water- Concentrations: 2 % - Testing/scoring schedule: treatment for 20 - 24 h, evaluation for 6 to 7 daysEXAMINATIONS- Grading/Scoring system: Due to skin colouring erythematous reaction could not be evaluated. Therefore itching; isolated papules; edema, confluent papules, infiltration; vesicular reaction were recorded.

Results and discussion

Results of examinations:
SYMPTOMSPatients showed itching, isolated papules, edema, confluent papules, infiltration and vesicular reaction within 7 days after treatment.NO. OF PERSONS WITH/OUT REACTIONS COMPARED TO STUDY POPULATION- Number of subjects with positive reactions: 11- Number of subjects with no reactions: 0Type of reaction: Patients showed symptoms ranging from isolated papules to edema, confluent papules, infiltration and vesicular reaction.

Applicant's summary and conclusion