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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Toxicity to microorganisms

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Administrative data

Endpoint:
toxicity to microorganisms
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Documentation insufficient for assessment. Only results are available.

Data source

Reference
Reference Type:
other: company data
Title:
Unnamed
Year:
1973

Materials and methods

Principles of method if other than guideline:
other: Bestimmung der biologischen Schadwirkung toxischer Abwaesser gegen Bakterien. DEV, L 8 (1968) modified
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2,4,6,6-pentamethylheptane-4-thiol
EC Number:
296-714-7
EC Name:
2,2,4,6,6-pentamethylheptane-4-thiol
Cas Number:
93002-38-1
Molecular formula:
C12H26S
IUPAC Name:
2,2,4,6,6-pentamethylheptane-4-thiol
Details on test material:
- Name of test material (as cited in study report): Dodecylmercaptan
- CAS No. as cited in study report: 25103-58-6 (tert. dodecanethiol), but the test material was material as defined in section 1 (CAS 93002-38-1). Therefore the new CAS number 93002-38 was assigned.
- Source: Bayer AG, OC-P/A-Fa/ ASM-Betrieb (25.4.73)
- Analytical purity: not specified

Sampling and analysis

Analytical monitoring:
not specified

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
Pseudomonas fluorescens

Study design

Test type:
static
Water media type:
freshwater
Total exposure duration:
24 h

Results and discussion

Effect concentrations
Duration:
24 h
Dose descriptor:
EC0
Effect conc.:
10 000 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition

Applicant's summary and conclusion