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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Respiratory sensitisation

Currently viewing:

Administrative data

Endpoint:
respiratory sensitisation
Remarks:
other: based on human data
Type of information:
other: Review
Adequacy of study:
weight of evidence
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: MAK review
Cross-referenceopen allclose all
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to other study

Data source

Referenceopen allclose all

Reference Type:
review article or handbook
Title:
List of MAK and BAT values 2000, Maximum concentrations and Biological Tolerance Values at the Workplace
Author:
Commission for the investigation of health hazards of chemical compounds in the work area
Year:
2000
Bibliographic source:
published by Willey-Vch, Deutsche Forschungsgemeinschaft
Reference Type:
review article or handbook
Title:
Guide to occupational exposure values 2002
Author:
ACGIH
Year:
2002
Bibliographic source:
ed by ACGIH ISBN: 1-882417-47-X

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
not applicable
GLP compliance:
no

Test material

Constituent 1
Reference substance name:
Tetrahydromethylphthalic anhydride
EC Number:
234-290-7
EC Name:
Tetrahydromethylphthalic anhydride
Cas Number:
11070-44-3
IUPAC Name:
3a-methyl-3a,4,5,6-tetrahydro-2-benzofuran-1,3-dione
Constituent 2
Reference substance name:
Methyltetrahydrophthalic anhydride
IUPAC Name:
Methyltetrahydrophthalic anhydride
Details on test material:
no details given

Test animals

Species:
human
Strain:
not specified
Sex:
not specified
Details on test animals or test system and environmental conditions:
no details given

Test system

Route of induction exposure:
inhalation
Route of challenge exposure:
inhalation
Vehicle:
not specified
Concentration:
no details given
No. of animals per dose:
no details given
Details on study design:
no details given
Challenge controls:
no details given

Results and discussion

Results:
MTHPA was classified as "Sa", danger of sensitization of airways by the German MAK commission (Commission for the investigation of health hazards of chemical compounds in the work area).
Substances classified as "Sa" can cause symptoms of the airways and also of the conjunctiva (substances causing airway sensitization).
Positive control results:
no details given
Negative control results:
no details given

Any other information on results incl. tables

no details given

Applicant's summary and conclusion

Interpretation of results:
sensitising
Conclusions:
Tetrahydromethylphthalic anhydride (MTHPA) classified as sensitising to the respiratory tract.
Executive summary:
Tetrahydromethylphthalic anhydride (MTHPA) was classified as "Sa", danger of sensitization of airways by the German MAK commission (Commission for the investigation of health hazards of chemical compounds in the work area). Substances classified as "Sa" can cause symptoms of the airways and also of the conjunctiva (substances causing airway sensitization).