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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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Reaction mass ofDisodium [1-{[2-(hydroxy-kO)-3,5-dinitrophenyl]diazenyl-kN1}naphthalen-2-olato(2-)-kO][3-(hydroxy-kO)-4-{[2-(hydroxy-kO)naphthalen-1-yl]diazenyl-kN1}-7-nitronaphthalene-1-sulfonato(3-)]chromate(2-) andDisodium [1-{[2-(hydroxy-kO)-3,5-dinitrophenyl]diazenyl-kN2}naphthalen-2-olato(2-)-kO][3-(hydroxy-kO)-4-{[2-(hydroxy-kO)naphthalen-1-yl]diazenyl-kN1}-7-nitronaphthalene-1-sulfonato(3-)]chromate(2-)
EC number: 944-038-4 | CAS number: -
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- Acid Black 107 (MuCS)
- Type of composition:
- boundary composition of the substance
- State / form:
- solid: bulk
- Reference substance:
- Acid Black 107 (MuCS)
- Reference substance:
- Acid Black 107 (MuCS)
- Name:
- Acid Black 107 (MuCS)
- Type of composition:
- legal entity composition of the substance
- State / form:
- solid: bulk
- Reference substance:
- Acid Black 107 (MuCS)
- Reference substance:
- Acid Black 107 (MuCS)
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Persistency assessment
The substance was assessed to be not biodegradable based on the available studies for ready and inherent biodegradability. Hence, it can not be excluded that the substance may fulfil the critria to be persistent (P) or very persistent (vP).
Bioaccumulation assessment
The substance was estimated to have a low log Kow (n-octanol/water partition coefficient) of 0.357. Hence, it can be concluded that the substance is neither biaccumulative (B) nor very bioaccumulative (vB).
Toxicity assessment
Short-term toxicity studies with fish, daphnids and Lemna minor are available for the substance, The lowest LC50 obtained in these studies is 0.66 mg/L from a short-term toxicity study with fish. Further, the substance did not have any adverse effect in a combined repeated dose oral toxicity study with reproductive and developmental screening. Hence, the criteria to be a toxicant (T) is also not fulfiled.
Referenceopen allclose all
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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