Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
toxicity to terrestrial plants, other
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data

Data source

Reference
Reference Type:
publication
Title:
pH Restraints on Lettuce Fruit Germination
Author:
Reynolds,T.
Year:
1975
Bibliographic source:
ECOTOX; OECD Toolbox

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Data from a reliable Database
Je Testsubstanz wurden 50 Samen von Lactuca sativa cv. Great Lakes in Aluminiumboxen (4.2 x 2.1 x 1.6 cm) mit Glasfenster im Deckel auf 8 ml 1%igem Molten-Agar inkubiert. Der Agar enthielt die Testsubstanzen (Agar:Testsubstanz-L#sung = 1:1)
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Pyruvic acid
EC Number:
204-824-3
EC Name:
Pyruvic acid
Cas Number:
127-17-3
Molecular formula:
C3H4O3
IUPAC Name:
2-oxopropanoic acid
Test material form:
liquid

Sampling and analysis

Analytical monitoring:
not specified

Test substrate

Vehicle:
not specified

Test organisms

Species:
Lactuca sativa
Plant group:
other: Flowering plants

Study design

Test type:
seed germination/root elongation toxicity test
Substrate type:
other: soil
Total exposure duration:
72 h

Results and discussion

Effect concentrations
Key result
Species:
Lactuca sativa
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
ca. 1.95 g/kg soil dw
Nominal / measured:
not specified
Conc. based on:
test mat.
Basis for effect:
germination

Applicant's summary and conclusion