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Reaction products of (E)-5-((4-amino-5-methoxy-2-methylphenyl)diazenyl)-3-((phenylsulfonyl)oxy)naphthalene-2,7-disulfonic acid condensate with cyanurchloride, then condensate with (E)-7-amino-4-hydroxy-3-((2-methoxy-5-sulfophenyl)diazenyl)naphthalene-2-sulfonic acid, finally condensate with aniline, potassium salts
EC number: 948-912-6 | CAS number: -
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data

Endpoint summary
Administrative data
Description of key information
Not skin sensitising.
Key value for chemical safety assessment
Skin sensitisation
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed (not sensitising)
- Additional information:
No study on target substance was available, thus a read across approach was followed for the assessment. In particular, studies on Similar Substance 01 and Similar substance 02 according to OECD guideline 406 were used. Details on the read across are available in section 13.
In a study from 1995 on Similar Substance 01, a sample with high purity (90 % dye, described as "purified") was tested. After intradermal induction at 5 %, no skin reactions were seen in 20 female guinea pigs.
In a study from 1994 on Similar Substance 01, a sample with 80 % purity, described as "raw", was tested. After intradermal induction at 5 %, a positive response was seen in 15 % and 30 % of treated animals after 24 h and 48 h, respectively. In particular, skin reactions were noted in 2/10 male and 4/10 female animals, 48 h after removal of the dressing.
As no positive response was seen in the study from 1995, despite
- the content of test substance was higher than in the study from 1994,
- only female animals were used, which were found to be more sensitive than males in the study from 1994,
the sensitisation response in the study from 1994 was reasonably attributed to the impurities content of test sample. Therefore, such study was disregarded, while the study from 1995 was selected as key study.
The lack of skin sensitising potential was confirmed by results of a study on Similar Substance 02. The evaluation for skin reactions, 24 h after challenge, showed 10 % positive responses in guinea pigs. No positive responses were noted 48 h after challenge.
Respiratory sensitisation
Endpoint conclusion
- Endpoint conclusion:
- no study available
Justification for classification or non-classification
Category 1
Substances shall be classified as skin sensitizers in category 1 where data are not sufficient for sub-categorisation in accordance with the following criteria:
(a) if there is evidence in humans that the substance can lead to sensitisation by skin contact in a substantial number of persons; or
(b) if there are positive results from an appropriate animal test.
As for guinea pig maximisation test, a response of at least 30 % of animals is considered positive.
Subcategorisation is done as follows in case of a guinea pig maximisation test:
Sub-category 1A
Substances showing a high frequency of occurrence in humans and/or a high potency in animals can be presumed to have the potential to produce significant sensitisation in humans. Severity of reaction may also be considered.
Specific criteria: ≥ 30 % responding at ≤ 0.1 % intradermal induction dose or ≥ 60 % responding at > 0.1 % to ≤ 1 % intradermal induction dose
Sub-category 1B
Substances showing a low to moderate frequency of occurrence in humans and/or a low to moderate potency in animals can be presumed to have the potential to produce sensitisation in humans. Severity of reaction may also be considered.
Specific criteria: ≥ 30 % to < 60 % responding at > 0.1 % to ≤ 1 % intradermal induction dose or ≥ 30 % responding at > 1 % topical induction dose.
As no positive response was seen in test animals upon a 5 % intradermal induction dose, the substance is not classified within the CLP Regulation (EC 1272/2008).
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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