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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 microorganisms
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Only result reported; no information on method and test performance

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
1979
Report date:
1979

Materials and methods

Principles of method if other than guideline:
Method: other: Fermentation tube test; toxicity measured as inhibition of anaerobic production of methane; no guideline stated
GLP compliance:
no
Remarks:
pre-GLP study

Test material

Constituent 1
Chemical structure
Reference substance name:
Valeric acid
EC Number:
203-677-2
EC Name:
Valeric acid
Cas Number:
109-52-4
Molecular formula:
C5H10O2
IUPAC Name:
pentanoic acid
Details on test material:
- Name of test material (as cited in study report): n-Valeriansäure
- no further data

Test organisms

Test organisms (species):
other: no data

Results and discussion

Effect concentrations
Dose descriptor:
NOEC
Effect conc.:
1 500 mg/L
Remarks on result:
other: Toxic Threshold Concentration (TGK) was initially reported, i.e. concentration without adverse effects

Applicant's summary and conclusion

Validity criteria fulfilled:
no
Conclusions:
Toxicity of valeric acid to microorganisms was low.
Executive summary:

Toxicity of valeric acid to microorganisms was low, as reportedly there was no toxicity at 1500 mg/L in the fermentation tube test. Reliability of this resulkt is low due to missing documentation (Hoechst AG, 1979).