Registration Dossier
Registration Dossier
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EC number: 200-001-8 | CAS number: 50-00-0
Additional toxicological data
Administrative data
- Endpoint:
- additional toxicological information
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
Data source
Reference
- Reference Type:
- review article or handbook
- Title:
- Formaldehyde, 2-Butoxyethanol and 1-tert-Butoxypropan-2-ol
- Author:
- IARC
- Year:
- 2 006
- Bibliographic source:
- Lyon, International Agency for Research on Cancer, IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Vol. 88, pp 39-325
Materials and methods
Test material
- Reference substance name:
- Formaldehyde
- EC Number:
- 200-001-8
- EC Name:
- Formaldehyde
- Cas Number:
- 50-00-0
- Molecular formula:
- CH2O
- IUPAC Name:
- formaldehyde
- Details on test material:
- - Name of test material (as cited in study report): formaldehyde
Constituent 1
Results and discussion
Applicant's summary and conclusion
- Conclusions:
- Genotoxicty and cytoxicity play important roles in the carcinogenesis of the test substance in nasal tissues.
- Executive summary:
The following summary and evaluation of the mode of action is given in IARC (2006), page 279 -280:
"The current data indicate that both genotoxicty and cytoxicity play important roles in the carcinogenesis of formaldehyde in nasal tissues. DNA–protein cross-links provide a potentially useful marker of genotoxicity. The concentration–response curve for the formation of DNA–protein cross-links is bi-phasic, and the slope increases at formaldehyde concentrations of about 2–3 ppm [2.4–3.7 mg/m3] in Fischer 344 rats. Similar results are found in rhesus monkeys, although the dose–response curve is less well defined in this species. Cell proliferation, which appears to amplify greatly the genotoxic effects of formaldehyde, is increased considerably at concentrations of formaldehyde of about 6 ppm [7.4 mg/m3], and results in a marked increase in the occurrence of malignant lesions in the nasal passages of rats at concentrations above this level. Several possible mechanisms were considered for the induction of human leukaemia, such as clastogenic damage to circulatory stem cells. The Working Group was not aware of any good rodent models that simulate the occurrence of acute myeloid leukaemia in humans. Therefore, on the basis of the data available at this time, it was not possible to identify a mechanism for the induction of myeloid leukaemia in humans."
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