Registration Dossier
Registration Dossier
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EC number: 416-740-6 | CAS number: -
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- Ester reaction products of 1,4-Benzenedicarboxylic acid with 11-14 iso-alcohols, C13-rich
- Type of composition:
- legal entity composition of the substance
- State / form:
- liquid
- Related composition:
- Ester reaction products of 1,4-Benzenedicarboxylic acid with 11-14 iso-alcohols, C13-rich
- Reference substance:
- Ester reaction products of 1,4-Benzenedicarboxylic acid with 11-14 iso-alcohols, C13-rich
- Reference substance:
- Ester reaction products of 1,4-Benzenedicarboxylic acid with 11-14 iso-alcohols, C13-rich
- Reference substance:
- Ester reaction products of 1,4-Benzenedicarboxylic acid with 11-14 iso-alcohols, C13-rich
- Reference substance:
- Ester reaction products of 1,4-Benzenedicarboxylic acid with 11-14 iso-alcohols, C13-rich
- PBT status:
- the substance is not PBT / vPvB
- Justification:
The test substance is not bioaccumulative (B) or very bioaccumulative (vB) based on calculated bioconcentration factor (BCF) values.
The low water solubility and high partition coefficient of the test material makes it very difficult to conduct an aqueous BCF study for the ester reaction products of 1,4-benzenedicarboxylic acid with C11-14 iso-alcohols, C13-rich. Weight of evidence data were mainly provided by the calculated bioconcentration factor (BCF) value of 0.895 and the calculated BAF value of 2.236 for the ester reaction products of 1,4-benzenedicarboxylic acid with C11-14 iso-alcohols, C13-rich, using the U.S. Environmental Protection Agency EPI SuiteTM model (v 4.00) (US EPA, 2009d). A further mitigating factor is the very high log Kow value (>10) which limits uptake across membranes due to bioavailability/membrane permeation constants. For the submission substance, the log Kow partition coefficient was determined by the HPLC method to be 9.5 to 11 (Stonybrook Labs., 1994) while a calculated log Kow value of 13.3 was estimated using the EPI Suite model (U.S. EPA, 2009g).
This data support the fact that the BCF value for the submission substance is well below the 2000 L/kg which is the criterion for not being considered bioaccumulative (B) and is well below the 5000 L/kg which is the criterion for not being considered very bioaccumulative (vB). The submission substance is inherently biodegradable and is not expected to be persistent (P) or very persistent (vP).
Reference
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