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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other information
Study period:
1976
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature

Data source

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Year:
1976
Report date:
1976
Reference Type:
publication
Title:
Unnamed
Year:
1978
Report date:
1978
Reference Type:
publication
Title:
Unnamed
Year:
1975
Report date:
1975

Materials and methods

Type of sensitisation studied:
skin
Study type:
study with volunteers
Principles of method if other than guideline:
Human maximisation test
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Nonanoic acid
EC Number:
203-931-2
EC Name:
Nonanoic acid
Cas Number:
112-05-0
Molecular formula:
C9H18O2
IUPAC Name:
nonanoic acid
Details on test material:
- Name of test material (as cited in study report): Pelargonic acid, Nonanoic acid


Method

Type of population:
general
Controls:
no data
Route of administration:
dermal

Results and discussion

Any other information on results incl. tables

Reading
1st reading
Hours after challenge
72
Group
test group
Dose level
12% in petrolatum
No. with + reactions
 
Total no. in group
25
Clinical observations
no sensitisation occured
Reading
2nd reading
Hours after challenge
96
Group
test group
Dose level
12% in petrolatum
No. with + reactions
 
Total no. in group
25
Clinical observations
no sensitisation occured

Applicant's summary and conclusion

Conclusions:
Data reported in the secondary source are insufficient for assessment.


Executive summary:

A human maximisation test was performed using 25 volunteers. The test item (purity not stated) was applied at a concentration of 12% in petrolatum. After induction (5 times patch application for 48 h) and challenge (14 days after induction, once for 48 h) exposures the summary stated that the test item produced no sensitisation reactions (Opdyke, 1978).