Registration Dossier
Registration Dossier
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EC number: 639-864-4 | CAS number: 43133-95-5
Endpoint summary
Administrative data
Description of key information
Additional information
Hydrolysis:
Hydrolysis is a reaction in which a water molecule or hydroxide ion substitutes for another atom or group of atoms present in a chemical resulting in a structural change of that chemical. Potentially hydrolyzable groups include alkyl halides, amides, carbamates, carboxylic acid esters and lactones, epoxides, phosphate esters, and sulfonic acid esters (Neely, 1985). The lack of a suitable leaving group renders compounds resistant to hydrolysis.
Methylpentane consists entirely of carbon and hydrogen and do not contain hydrolysable groups. As such, they have a very low potential to hydrolyze. Therefore, this degradative process will not contribute to their removal from the environment.
Biodegradation:
An OECD 301F Manometric Respirometry test was conducted using C6-C7, n-alkanes, isoalkanes, cyclics C6 aliphatics (Shell 1997). The test substance was 98% degraded at the end of 28 days, and 83% degraded at the end of the 10 -day window. This has been read across to methylpentane. This is supported by a QSAR calculation for n-hexane that is read across to methylpentane.
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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