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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 205-769-8 | CAS number: 150-76-5
Other distribution data
Administrative data
- Endpoint:
- other distribution data
- Type of information:
- experimental study
- Adequacy of study:
- disregarded due to major methodological deficiencies
- Reliability:
- 3 (not reliable)
- Rationale for reliability incl. deficiencies:
- other: Only the removal of the substance from water is measured, no indication of possible metabolisation/degradation impact is provided. Single bacteria is used, therefore the result can not be extrapolated to the distribution in the environment.
Data source
Reference
- Reference Type:
- publication
- Title:
- BIOACCUMULATION OF P-METHOXYPHENOL AND 4-ISOPROPYLPHENOL ON ACINETOBACTER CALCOACETICUS ANITRATUS
- Author:
- Zaim KK
- Year:
- 1 991
- Bibliographic source:
- Doga - Tr. J. of Engineering and Environmental Sciences. 15 (1991), 39-53
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The bioaccumulation of the test substance by sub-surface bacterial biomass was performed by single-solute bioaccumulation isotherm in static
bottle test procedure.
The bioaccumulation was determined by the ratio between the concentration in the filtrate at each sampling time and the initial concentration of the test substance. - GLP compliance:
- not specified
- Type of study:
- other: bioaccumulation by sub-surface bacterial biomass
- Media:
- other: water - bacterial biomass
Test material
- Reference substance name:
- Mequinol
- EC Number:
- 205-769-8
- EC Name:
- Mequinol
- Cas Number:
- 150-76-5
- Molecular formula:
- C7H8O2
- IUPAC Name:
- 4-methoxyphenol
- Details on test material:
- Identity: p-Methoxyphenol (no other information available).
Constituent 1
Results and discussion
Any other information on results incl. tables
Bioaccumulation on 1000 mg/L biomass at high concentration:
- stationary mode (185.44 µg/L): from 0 to 15% of removal of the initial concentration
- low nutrient mode (101.57 mg/L): maximum of removal of 48% of the inital concentration at 10h,
followed by a desorption
Bioaccumulation on 1000 mg/L biomass at low concentration:
- stationary mode (50.31 µg/L): maximum of 10% of removal of the initial concentration
- low nutrient mode (52.97 mg/L): maximum of 15% of removal of the inital concentration
Bioaccumulation on 500 mg/L biomass at high concentration:
- stationary mode (186.07 µg/L): maximum of 38% of removal of the initial concentration
- low nutrient mode (249.99 mg/L): maximum of removal of 10% of the inital concentration.
Bioaccumulation on 500 mg/L biomass at low concentration:
- stationary mode (61.42 µg/L): maximum of 35% of removal of the initial concentration
- low nutrient mode (59.98 mg/L): maximum of 10% of removal of the inital concentration
Bioaccumulation on 300 mg/L biomass at high concentration:
- stationary mode (184.93 µg/L): maximum of 45 % of removal of the initial concentration
- low nutrient mode (222.26 mg/L): maximum of removal of 10% of the inital concentration.
Bioaccumulation on 300 mg/L biomass at low concentration:
- stationary mode (95.42 µg/L): maximum of 15% of removal of the initial concentration
- low nutrient mode (121.23 mg/L): maximum of 5% of removal of the inital concentration.
Applicant's summary and conclusion
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.
