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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Exposure related observations in humans: other data

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Administrative data

Endpoint:
exposure-related observations in humans: other data
Type of information:
experimental study
Adequacy of study:
disregarded due to major methodological deficiencies
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Only secondary literature

Data source

Reference
Reference Type:
publication
Title:
The excretion in breath of some aliphatic halogenated hydrocarbons following administration by inhalation.
Author:
Morgan, A., et al.
Year:
1970
Bibliographic source:
Ann Occup. Hyg. 13:219-233, as cited in: OECD SIDS Chloromethane, 2004

Materials and methods

Type of study / information:
Type of experience: Human
Endpoint addressed:
basic toxicokinetics
Principles of method if other than guideline:
After inhalation as a single breath of 38C-chloromethane by volunteers, to assess distribution and excretion.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Chloromethane
EC Number:
200-817-4
EC Name:
Chloromethane
Cas Number:
74-87-3
Molecular formula:
CH3Cl
IUPAC Name:
chloromethane
Details on test material:
- Name of test material (as cited in study report):  38C-chloromethane
- Analytical purity: no data

Results and discussion

Results:
After inhalation as a single breath of 38C-chloromethane by volunteers, 29% of the inhaled radioactivity was excreted in expired air within one hour. The urinary excretion was < 0.01%/min. Chloromethane was shown to be slower in excretion than predicted based on the blood: air partition coefficient, suggesting it reacts with substances in the bloodstream.

Applicant's summary and conclusion