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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 290-714-0 | CAS number: 90218-39-6
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: screening tests
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 1974
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 974
- Report date:
- 1974
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method C.5 (Degradation: Biochemical Oxygen Demand)
- Principles of method if other than guideline:
- BSB5 : Method DEV H5
CSB: Method DEV H4
pH=9.6 (conc. 1g/l) - GLP compliance:
- no
Test material
- Reference substance name:
- Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-nitro-, disodium salt, reaction products with 4-[(4-aminophenyl)azo]benzenesulfonic acid, sodium salts
- EC Number:
- 215-397-8
- EC Name:
- Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-nitro-, disodium salt, reaction products with 4-[(4-aminophenyl)azo]benzenesulfonic acid, sodium salts
- Cas Number:
- 1325-54-8
- Molecular formula:
- Molecular formula of the main constituents: (1) C38H24N8Na4O12S4 (2) C52H32N10Na6O18S6
- IUPAC Name:
- Reaction mass of Tetrasodium 5-[[4-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]-2-[2-[2-sulfonato-4-[[4-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]phenyl]ethenyl]benzenesulfonate and Hexasodium 2-((E)-2-sulfonato-4-((E)-(3-sulfonato-4-((E)-2-sulfonato-4-((E)-(4-((E)-(4-sulfonatophenyl)diazenyl)phenyl)diazenyl)styryl)phenyl)diazenyl)styryl)-5-((E)-(4-((E)-(4- sulfona-tophenyl)diazenyl)phenyl)diazenyl)benzenesulfonate.
- Test material form:
- solid: particulate/powder
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Duration of test (contact time):
- 5 d
Results and discussion
% Degradation
- Remarks on result:
- other: BOD5/COD
BOD5 / COD results
BOD5 / CODopen allclose all
- Key result
- Parameter:
- BOD5
- Value:
- 12 mg O2/g test mat.
- Parameter:
- COD
- Value:
- 617 mg O2/g test mat.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- The substance has a BOD5 of 12 mg O2/g test mat. The ratio BOD5/COD is ca. 2, not indicating any potential for biodegradation.
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.
