Registration Dossier
Registration Dossier
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EC number: 210-288-1 | CAS number: 611-99-4
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- 4,4'-Dihydroxybenzophenone
- Type of composition:
- legal entity composition of the substance
- State / form:
- solid: bulk
- Reference substance:
- 4,4'-Dihydroxybenzophenone
- PBT status:
- the substance is not PBT / vPvB
- Justification:
The substance is considered to be soluble in water and is readily biodegradable. There is no evidence of CMR properties and although showing some moderate toxicity to aquatic organisms, it is not considered T
Persistant- This substance is readily biodegradable according to an OECD 301B study (~80% (CO2 evolution) after 28 d) and as such does not persist in the environment. Thus 4,4 -dihyrdoxybenzophenone does not meet the screening criterion for persistence and it is not considered to be P or vP.
Bioaccumulative- The measured Log Pow is -0.07. The available information indicates that cetyl betaine has a very low potential for bioconcentration and they will not accumulate to significant levels in aquatic organisms. Therefore it is not considered to be bioaccumulative - not B or vB.
Toxic-the toxicity criterion is not met for 4,4 -dihydroxybenxophenone as the acute aquatic toxicity L(E)C50 is >1 mg/L. Not T or vT
Reference
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