Registration Dossier
Registration Dossier
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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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EC number: 265-047-3 | CAS number: 64741-47-5 A complex combination of hydrocarbons separated as a liquid from natural gas in a surface separator by retrograde condensation. It consists mainly of hydrocarbons having carbon numbers predominantly in the range of C2 to C20. It is a liquid at atmospheric temperature and pressure.
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Biodegradation data are available for 1 streams within this category; all data came from ExxonMobil (2004).The data are considered reliable and suitable for assessment. All data showed the test substances to be not readily biodegradable. Biodegradation rate was 7.3 % in 28 days. Data will be read across to other category members.
It is not feasible to perform simulation tests on complex, volatile UVCBs.
BIOWIN QSAR simulated tests were conducted for consituents from this category using Biowin 2, 3, 5 and 6. These QSARs predicted that some of the constituents within the category could potentially be readily biodegradable or biodegrade fast, while a minority of constituents not expected to be rapidly biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
In an OECD 301F ready biodegradation study 1 stream from this category (CAS No: 68921 -67-5) was shown to degrade by 7.3% in 28 days and is therefore not considered readily biodegradable.
BIOWIN QSAR simulated tests were conducted for substances within the category. The Biowin 2 range of results was 0.0558 – 0.9999, Biowin 3 2.33 – 3.5523, Biowin 5 -0.377 – 0.7157, and Biowin 6 0.122 – 0.8799
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.
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