Registration Dossier
Registration Dossier
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EC number: 203-931-2 | CAS number: 112-05-0
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- nonanoic acid
- Type of composition:
- boundary composition of the substance
- State / form:
- liquid
- Reference substance:
- nonanoic acid
- Name:
- nonanoic acid
- Type of composition:
- legal entity composition of the substance
- State / form:
- liquid
- Related composition:
- nonanoic acid
- Reference substance:
- nonanoic acid
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Nonanoic acid is not considered to be persistent in the environment because it was readily biodegradable according to OECD criteria in the modified Sturm test (OECD 301 B: 72 % in 29 d, 10-d window met; Celanese, 1999). No significant bioaccumulation potential is expected for n-nonanoic acid based on a measured BCF according to the MITI protocol (read-across from source 3,5,5-trimethylhexanoic acid), which corresponds to OECD 305 C (NITE, 2008). The BCF at the lower test concentration (0.1 mg/L) was < 3.1-7.0, while the BCF at the higher test concentration (1 mg/L) was lower (0.5-1.7). In addition, the log Kow was 3.4, i.e. well below the screening criterion of 4.5. Regarding aquatic toxicity, the short-term effect concentrations (EC50 or LC50) were pronouncedly above the screening criterion of 0.1 mg/L for fish, daphnia, and algae. The NOEC for freshwater green algae (Raphidocelis subcapitata; 72 h; growth rate & yield; nominal, anal. verified) was determined to 5.66 mg/L, i.e. far above the cut-off according to Annex XIII, REACH. With regard to human health endpoints, the substance is neither classified for carcinogenicity, germ cell mutagenicity, or reproductive toxicity, nor is there any other evidence of chronic toxicity which would afford classification according to Regulation EC No 1272/2008.
Referenceopen allclose all
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