Registration Dossier
Registration Dossier
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EC number: 270-219-6 | CAS number: 68413-47-8
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- Butanedioic acid, 2-[(dipropoxyphosphinothioyl)thio]-, 1,4-dibutyl ester
- Type of composition:
- legal entity composition of the substance
- State / form:
- liquid
- Reference substance:
- Butanedioic acid, 2-[(dipropoxyphosphinothioyl)thio]-, 1,4-dibutyl ester
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Based on the extent of CO2 evolution during this study (42.57% on Day 28), the test substance cannot be classified as readily biodegradable by the criteria set forth in OECD Guideline 301B since 60% CO2 evolution was not achieved within a 10-day window of reaching 10% biodegradation.
The measured test concentrations of the substance in aquatic medium were very low (< 0.039 mg/L), less than its water solubility (0.233 mg/L) in the acute toxicity tests in aquatic organisms (algae, daphnia, and fish). The substance is therefore expected to have low potential for bioaccumulation in aquatic organisms although the substance is persistent and its Log Pow exceeds 5.
The measured test concentrations of the substance in aquatic medium were very low (< 0.039 mg/L), less than its water solubility (0.233 mg/L) in the acute toxicity tests in aquatic organisms (algae, daphnia, and fish). The substance is therefore expected to have low potential for bioaccumulation in aquatic organisms although the substance is persistent and its Log Pow exceeds 5.
Reference
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