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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
skin sensitisation: in vivo (non-LLNA)
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2002

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 406 (Skin Sensitisation)
Deviations:
no
GLP compliance:
yes
Type of study:
Freund's complete adjuvant test

Test material

Constituent 1
Chemical structure
Reference substance name:
2-(2-formyl-4-nitrophenoxy)hexanoic acid
EC Number:
608-880-3
Cas Number:
335153-21-4
Molecular formula:
C13H15NO6
IUPAC Name:
2-(2-formyl-4-nitrophenoxy)hexanoic acid

In vivo test system

Test animals

Species:
guinea pig
Strain:
Hartley
Sex:
female
Details on test animals and environmental conditions:
11 females; females were nulliparous and non-pregnant. Group housing.. Ambient temperature @20°C with 30-70% humidity. 10-15 air exchanges per hour. 12 hourlight/dark cycle, full spectrum fluorescent lights.

Study design: in vivo (non-LLNA)

Inductionopen allclose all
Route:
intradermal and epicutaneous
Vehicle:
cotton seed oil
Concentration / amount:
Neat concentration = 2g in 20ml cotton seed oil
Intradermal injection conc used 75% of the neat concentration.
Topical application conc used 100% neat concentration
Challengeopen allclose all
Route:
intradermal and epicutaneous
Vehicle:
cotton seed oil
Concentration / amount:
Neat concentration = 2g in 20ml cotton seed oil
Intradermal injection conc used 75% of the neat concentration.
Topical application conc used 100% neat concentration
No. of animals per dose:
Primary irritation group consisted of 3 animals.
Main study: Induction by intradermal injection. 5 animals and a control group of 3 animals.
Challenge controls:
All animals were involved in the challenge.
Positive control substance(s):
not specified

Results and discussion

Applicant's summary and conclusion

Interpretation of results:
not sensitising
Remarks:
Migrated information
Conclusions:
According to the scoring, this is a Grade 1 reaction and the test substance is classified as having weak allergic potential. This is not considered significant according to Magnusson and Kligman.
Executive summary:

According to the scoring, this is a Grade 1 reaction and the test substance is classified as having weak allergic potential. This is not considered significant according to Magnusson and Kligman.