Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Direct observations: clinical cases, poisoning incidents and other

Administrative data

Endpoint:
direct observations: clinical cases, poisoning incidents and other
Type of information:
other: case reports
Adequacy of study:
key study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Anecdotal reports of effects of exposure of methyl pyridines.

Data source

Reference
Reference Type:
secondary source
Title:
3-Methylpyridine: Human toxicity excerpts
Author:
Anonymous
Year:
2010
Bibliographic source:
Hazardous Substances Data Base(HSDB), ToxNet, http://toxnet.nlm.nih.gov/cgi-bin/sis/search/f?./temp/~rYtOpf:1

Materials and methods

Study type:
other: case reports
Endpoint addressed:
not applicable
Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
case reports of exposures
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
4-methylpyridine
EC Number:
203-626-4
EC Name:
4-methylpyridine
Cas Number:
108-89-4
Molecular formula:
C6H7N
IUPAC Name:
4-methylpyridine

Method

Type of population:
occupational
Ethical approval:
not applicable
Reason of exposure:
unintentional, occupational
Exposure assessment:
not specified

Results and discussion

Any other information on results incl. tables

4-METHYLPYRIDINE
CASRN: 108 -89 -4

For other data, click on the Table of Contents


Human Toxicity Excerpts:

CLINICAL SIGNS OF INTOXICATION CAUSED BY ALKYL DERIV OF PYRIDINE INCL WT LOSS, DIARRHEA, WEAKNESS, ATAXIA & UNCONSCIOUSNESS. /PYRIDINE ALKYL DERIV/
[International Labour Office. Encyclopedia of Occupational Health and Safety. Vols. I&II. Geneva, Switzerland: International Labour Office, 1983., p. 1811] **PEER REVIEWED**

Exposures to the picolines may give rise to flushing of the face, skin rash, an incr in heart & respiration rates, headache, giddiness, nausea & vomiting. /Picolines/
[International Labour Office. Encyclopedia of Occupational Health and Safety. Vols. I&II. Geneva, Switzerland: International Labour Office, 1983., p. 1577] **PEER REVIEWED**

Data indicates that 4-methylpyridine is moderately toxic when administered orally & very toxic when given dermally & ip. Symptoms include occasional diarrhea, weight loss, anemia, & ocular & facial paralysis.
[Snyder, R. (ed.). Ethyl Browning's Toxicity and Metabolism of Industrial Solvents. 2nd ed. Volume II: Nitrogen and Phosphorus Solvents. Amsterdam-New York-Oxford: Elsevier, 1990., p. 235] **PEER REVIEWED**

4-Methylpyridine induced a dose-related increased frequency of sister chromatid exchange in human lymphocyte cultures from three individuals. Chromosomal aberrations induced by 4-methylpyridine included: chromatid breaks; centromeric, intermediate & terminal chromosome breaks; terminal & interstitial deletions; translocation; dicentric chromosomes; & isochromosomes.
[Snyder, R. (ed.). Ethyl Browning's Toxicity and Metabolism of Industrial Solvents. 2nd ed. Volume II: Nitrogen and Phosphorus Solvents. Amsterdam-New York-Oxford: Elsevier, 1990., p. 235] **PEER REVIEWED**

ALKYL DERIVATIVES, PICOLINES ... CAUSE SYMPTOMS RESEMBLING THOSE OBSERVED WITH PYRIDINE. THESE ARE LARGELY NONSPECIFIC & INCL WEAKNESS, ATAXIA, DIARRHEA, & UNCONSCIOUSNESS. DELAYED DEATHS FOLLOWING SINGLE DOSE ARE UNCOMMON & SURVIVORS GENERALLY GAIN WT NORMALLY. /PICOLINES/
[Clayton, G. D. and F. E. Clayton (eds.). Patty's Industrial Hygiene and Toxicology: Volume 2A, 2B, 2C: Toxicology. 3rd ed. New York: John Wiley Sons, 1981-1982., p. 2724] **PEER REVIEWED**


Skin, Eye and Respiratory Irritations:
Pyridine and its derivatives cause local irritation on contact with the skin, mucous membranes and cornea. /Pyridine and its derivatives/
[International Labour Office. Encyclopedia of Occupational Health and Safety. Vols. I&II. Geneva, Switzerland: International Labour Office, 1983., p. 1810] **PEER REVIEWED**

A severe skin & eye irritant.
[Lewis, R.J. Sax's Dangerous Properties of Industrial Materials. 9th ed. Volumes 1-3. New York, NY: Van Nostrand Reinhold, 1996., p. 2305] **PEER REVIEWED**

Applicant's summary and conclusion

Conclusions:
CLINICAL SIGNS OF INTOXICATION CAUSED BY ALKYL DERIV OF PYRIDINE INCLUDE WEIGHT LOSS, DIARRHEA, WEAKNESS, ATAXIA & UNCONSCIOUSNESS.