1,2-Dihydro-2,2,4-trimethylquinoline, oligomers

Toxicity to soil microorganisms

Administrative data

Endpoint:

toxicity to soil microorganisms

Type of information:

experimental study

Adequacy of study:

other information

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

other: ducumentation insufficient for assessment

Data source

Reference

Reference Type:

publication

Title:

The Effect of Both Powdered and Liquid Rubber Additives on the Growth of Soil Microorganisms

Author:

Williams GR

Year:

1984

Bibliographic source:

International Biodetoriation Vol. 20 No. 3

Materials and methods

Principles of method if other than guideline:

The substance was incorporated into nutrient agar, at varying concentrations, approximating the levels of incorporation in rubber formulations, and inoculated with soil extract (3.0 E+07 organisms per ml).

Test material

Test material information

Constituent 1

Reference substance name:

1,2-Dihydro-2,2,4-trimethylquinoline, oligomers

EC Number:

500-051-3

EC Name:

1,2-Dihydro-2,2,4-trimethylquinoline, oligomers

Cas Number:

26780-96-1

Molecular formula:

(C12H15N)x

IUPAC Name:

2,2,4-trimethyl-1,2-dihydroquinoline

Details on test material:

polymerised 2,2,4-trimethyl-dihydroquinolins

Test organisms

Test organisms (inoculum):

soil

Study design

Total exposure duration:

14 d

Test conditions

Test temperature:

25°C

Results and discussion

Effect concentrations

Duration:

14 d

Dose descriptor:

other: LD50

Effect conc.:

> 1.5 other: %

Nominal / measured:

nominal

Conc. based on:

test mat.

Basis for effect:

other: growth inhibition

Any other information on results incl. tables

The substance was classified as non-toxic.