Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 229-662-0 | CAS number: 6642-31-5
Adsorption / desorption
Administrative data
Link to relevant study record(s)
- Endpoint:
- adsorption / desorption, other
- Remarks:
- Expert Statement on the absorption coefficient for soils and sediment
- Type of information:
- other: Expert Statement
- Adequacy of study:
- key study
- Study period:
- 2002-07-09
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- accepted calculation method
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The estimation was performed based on a water solubility of 5500 mg/l using regression equations.
- GLP compliance:
- no
- Type of method:
- other: estimation
- Media:
- other: estimation for soil and sediment
- Key result
- Type:
- Koc
- Value:
- >= 38
- Remarks on result:
- other: classified as slightly mobile in soils
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- The expert statement uses an scientifically reasonable estimation method for the classification of the mobility of the test item in soil. The adsorption coefficient Koc of 6-amino-1,3-dimethyluracil was estimated to be 38 or higher. This means that 6-amino-1,3-dimethyluracil is classified as slightly mobile in soils.
- Executive summary:
The adsorption coefficient Koc of 6-amino-1,3-dimethyluracil was estimated via regression equations in an expert statement to be 38 or higher. This means that 6-amino-1,3-dimethyluracil is classified as slightly mobile in soils.
- Endpoint:
- adsorption / desorption
- Remarks:
- adsorption
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Scientifically acceptable estimation method
- Principles of method if other than guideline:
- Calculated using PCKOCWIN v1.66
- GLP compliance:
- no
- Type of method:
- other: Calculated
- Media:
- soil
- Type:
- Koc
- Value:
- 10
- Key result
- Type:
- log Koc
- Value:
- 0.999
Referenceopen allclose all
Description of key information
Adsorption / desorption: Koc ≥ 38, slightly mobile in soils (expert statement, estimation via regression equations)
Adsorption / desorption: Koc = 10, logKoc = 0.999 (PCKOCWIN v1.66 estimation)
Key value for chemical safety assessment
- Koc at 20 °C:
- 38
Additional information
[LogKoc: 1.58]
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.
