Registration Dossier
Registration Dossier
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EC number: 233-482-8 | CAS number: 10193-99-4
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Study period:
- not specified
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
- Justification for type of information:
- see attached justification for read across
- Reason / purpose for cross-reference:
- read-across source
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- Deviations:
- not specified
- GLP compliance:
- not specified
- Remarks:
- the test was conducted in an academic setting without GLP certification
- Oxygen conditions:
- aerobic
- Duration of test (contact time):
- 28 d
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 22.4
- St. dev.:
- 2.8
- Sampling time:
- 28 d
- Remarks on result:
- other: OECD 301F (MRT), read-across from DiPETMP
- Remarks:
- inherently biodegradable
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 26
- Sampling time:
- 28 d
- Remarks on result:
- other: OECD 301B, read across from PETMP
- Remarks:
- inherently biodegradable
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- inherently biodegradable
- Remarks:
- With respect to inherent biodegradability tests (OECD 302A-C) the guidelines state: “Biodegradation above 20% of theoretical […] may be regarded as evidence of inherent, primary biodegradability”(OECD 2006, paragraph 36; ECHA 2017, page 216). As far as substances measured here achieved above 20% biodegradation even in an OECD 301 test, this is considered as evidence of their inherent primary biodegradability.
- Conclusions:
- Based on read across from PETMP, PETMA is considered not readily biodegradable. However, the biodegradation exceeds 20%, PETMA is considered as inherently biodegradable.
Reference
Description of key information
Based on read across from PETMP, PETMA is considered not readily biodegradable. However, the biodegradation exceeds 20%, PETMA is considered as inherently biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable
- Type of water:
- freshwater
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
