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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
acute toxicity: other routes
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: documentation insufficient for assessment

Data source

Reference
Reference Type:
publication
Title:
The toxicity of individual essential amino acids and their diastereomers in rats and the effect of blood sugar levels
Author:
GULLINO P, WINITZ M, BIRNBAUM SM, CORNFIELD J, OTEY MC, GREENSTEIN JP
Year:
1955
Bibliographic source:
Arch.Biochem.Biophys. 1955 Sep;58(1):253-5.

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
The compounds were administered singly as slurries in 5 ml. distilled water intraperitoneally into adult male rats.
The relation between dose and mortality was determined in three separate steps with increasingly narrower ranges of dosages at each successive step.
GLP compliance:
no
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
L-methionine
EC Number:
200-562-9
EC Name:
L-methionine
Cas Number:
63-68-3
Molecular formula:
C5H11NO2S
IUPAC Name:
L-methionine

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Weight at study initiation: 180-250 g
- Fasting period before study:24h

Administration / exposure

Route of administration:
intraperitoneal
Vehicle:
water

Results and discussion

Effect levelsopen allclose all
Sex:
male
Dose descriptor:
LD50
Effect level:
29 other: mM/kg
Based on:
test mat.
Sex:
male
Dose descriptor:
LD50
Effect level:
4 328 mg/kg bw
Based on:
test mat.

Applicant's summary and conclusion