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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other: case report
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment

Data source

Reference
Reference Type:
publication
Title:
Occupational contact allergy to the epoxy resin hardener 2-methylpentane-1,5-diamine
Author:
Susanne Darr-Foit, Johannes Geier, Peter Elsner, Sibylle Schliemann
Year:
2016
Bibliographic source:
Contact Dermatitis, 74, 115-116

Materials and methods

Type of sensitisation studied:
skin
Study type:
case report
Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
other: Guideline of the German Contact Dermatitis Research Group (Schnuch et al., 2008)
Deviations:
not specified
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
2-methylpentane-1,5-diamine
EC Number:
239-556-6
EC Name:
2-methylpentane-1,5-diamine
Cas Number:
15520-10-2
Molecular formula:
C6H16N2
IUPAC Name:
2-methylpentane-1,5-diamine
Test material form:
liquid

Method

Type of population:
occupational
Ethical approval:
not specified
Subjects:
- Number of subjects exposed: 1
- Sex: male
- Age: 63 y
- Race: white
- Demographic information: none
Clinical history:
- History of allergy or casuistics for study subject or populations: not specified
- Symptoms, onset and progress of the disease: 4-years of work-related contact dermatitis comprising itching, burning, oozing of face, forearms, dorsal surfaces of hands when handling epoxy resin sytems
- Exposure history: work-related, no time span specified
- Aggravating factors both in home and workplace: not specified
- Family history: not specified
- Any other allergic or airway disorders: not specified
- Smoking history: not specified
Controls:
concurrent on exposed subject
Route of administration:
dermal
Details on study design:
TYPE OF TEST(S) USED: patch test (epicutaneous test)

ADMINISTRATION
- Type of application: occlusive
- Description of patch: small Finn Chambers on Scanpor tape (SmartPractice Europe, Reinbeck, Germany)
- Vehicle / solvent: petrolatum
- Concentrations: 0.25% MPMD
- Volume applied: not specified
- Testing/scoring schedule: not specified
- Removal of test substance: after 2 days


EXAMINATIONS
- Grading/Scoring system: not specified, (given as -,?,+,++,+++)
- Statistical analysis: no

Results and discussion

Results of examinations:
SYMPTOMS:
- Frequency, level, duration of symptoms observed: not specified

RESULT OF CASE REPORT:
see Table 1

DISCUSSION:
The authors state that it is probable that the patient was co-sensitized by co-exposure to MPMD and m-xylene diamine, as he handled an epoxy resin system containing both substances.

Any other information on results incl. tables

Table 1 (taken from Darr-Foit et al., 2016)


















Substance and test concentration



reading on day 2 (D2)



D3



D6



2-Methylpentane-1,5-diamine


0.25%


 



?



++



+++


Applicant's summary and conclusion

Executive summary:

A positive patch test reaction to MPMD of a 63-year old male worker with a 4-year history of work-related contact dermatitis due to handling of epoxy resin systems  was observed. The authors state that it was probable that the patient was co-sensitized by co-exposure to MPMD and m-xylene diamine, as he handled an epoxy resin system containing both substances.