Registration Dossier
Registration Dossier
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EC number: 205-289-9 | CAS number: 137-32-6
Endpoint summary
Administrative data
Description of key information
Additional information
Stability
Phototransformation in air
This is not a standard information requirement for a registration under the REACH Regulation.
Hydrolysis
According to Annex VIII (Paragraph 9.2.2, Column 2) of the REACh regulation 1907/2006 a test on hydrolysis does not need to be conducted if the substance is readily biodegradable or highly insoluble in water. In addition alcohols are generally resistant to aqueous environmental hydrolysis. Therefore, 2-methylbutan-1-ol is not expected to hydrolyze in the environment.
Phototransformation in water
This is not a standard information requirement for a registration under the REACH Regulation.
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Phototransformation in soil
This is not a standard information requirement for a registration under the REACH Regulation.
Biodegradation
Biodegradation in water: screening test:
The ready biodegradability of the test substance was investigated according to OECD Guideline 310 (Ready Biodegradability - CO2 in Sealed Vessels (Headspace Test). The test substance was degraded 93 % in 18 days, therefore the test substance was found to be readily-biodegradable under the test conditions.
The ready biodegradability of the test item was also assessed in a read across category approach based on grouping of substances. The surrogate test substances were found to be readily biodegradable.
Biodegradation in water and sediment
The substance is considered as readily biodegradable. Therefore, no further testing on biodegradation is required according to Annex IX (Paragraph 9.2.1, Column 2) of the REACh regulation 1907/2006.
Biodegradation in soil
The substance is considered as readily biodegradable. Therefore, no further testing on biodegradation is required according to Annex IX (Paragraph 9.2.1, Column 2) of the REACh regulation 1907/2006.
Bioaccumulation
Bioaccumulation: aquatic/sediment
For 2 -methylbutan-1 -ol was determined a log Kow= 1.29 (25°C) according to Valvani SC et al., 1981 (HSDB, 2008).In accordance with Column 2 of REACH Annex IX, the study need not be conducted if the substance has a low potential for bioaccumulation (for instance a log Kow < 3) and/or a low potential to cross biological membranes. The substance has a log Kow < 3 and a low potential for bioaccumulation. Testing of bioconcentration in an aquatic species is therefore not required.
Bioaccumulation terrestrial
Data on terrestrial bioaccumulation in soil are not required for REACh registration.
Transport and distribution
Adsorption/Desorption
Based upon a calculated log Koc = 0.75 adsorption to solid soil phase is not expected.
Henry´s Law constant
2 -methylbutan-1-ol will slowly evaporate from the water surface into the atmosphere. Henry´s law constant at 25°C was estimated to be 1.34 Pa*m3/mole by SRC HENRYWIN v3.10 [BASF SE 2010].
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.
