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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
sensitisation data (humans)
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
2002
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Only short abstract available
Cross-referenceopen allclose all
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to other study

Data source

Reference
Reference Type:
publication
Title:
Gas Chromatography: An Investigative Tool in Multiple Allergies to Essential Oils.
Author:
Dharmagunawardena B, Takwale A, Sanders KJ, Cannan S, Rodger A and Ilchyshyn A
Year:
2002
Bibliographic source:
Contact Dermatitis. 47(5): 288-292

Materials and methods

Type of sensitisation studied:
skin
Study type:
case report
Principles of method if other than guideline:
Method: Single Patch test performed in a patient
GLP compliance:
not specified

Test material

Constituent 1
Reference substance name:
Melaleuca viridiflora extract
EC Number:
310-217-5
EC Name:
Melaleuca viridiflora extract
Cas Number:
132940-73-9
IUPAC Name:
Essential oil of Melaleuca viridiflora (Myrtaceae) obtained from twigs and leaves by steam distillation
Test material form:
other: oil
Details on test material:
- Name of test material (as cited in study report): Niaouli oil

Method

Type of population:
other: clinical case presented with suspected allergic contact dermatitis
Controls:
No
Route of administration:
dermal

Results and discussion

Results of examinations:
- Niaouli oil showed a positive reaction (oedematous/vesicular reaction) on Day 4.
- It was found to be composed of α-pinene (>1 %), terpineol (>10 %) and caryophylene (>10 %).

Any other information on results incl. tables

None

Applicant's summary and conclusion

Conclusions:
Niaouli oil showed a positive reaction (oedematous/vesicular reaction) on Day 4. It was found to be composed of α-pinene (>1 %), terpineol (>10 %) and caryophylene (>10 %).
Executive summary:

In a skin sensitisation study, a female patient (51 year old professional aromatherapist presented with suspected allergic contact dermatitis) was applied with occlusive patches containing niaouli oil diluted in white petrolatum, for 48 h. The reactions were observed at 30 min. after removal of patches and on Day 4. The composition of the oil was analysed using GC-MS chromatography.

Niaouli oil showed a positive reaction (oedematous/vesicular reaction) on Day 4. It was found to be composed of α-pinene (>1 %), terpineol (>10 %) and caryophylene (>10 %).