Registration Dossier

Diss Factsheets

Classification & Labelling & PBT assessment

PBT assessment

Administrative data

Assessed Substance

Assessed substance:
substance itself
Reference
Reference substance name:
Unnamed
IUPAC name:
sodium 2,4-diamino-5-(2-hydroxy-5-nitrophenylazo)benzenesulphonate
Inventory number:
InventoryMultipleMappingImpl [inventoryEntryValue=EC 222-810-5]
CAS number:
3618-62-0
Identity:
sodium (E)-2,4-diamino-5-((2-hydroxy-5-nitrophenyl)diazenyl)benzenesulfonate
Molecular formula:
C12H10N5NaO6S
Molecular weight:
ca. 375.3
SMILES notation:
[Na+].Nc1cc(N)c(cc1S(=O)([O-])=O)/N=N/c2cc(ccc2O)N(=O)=O
InChl:
1/C12H11N5O6S.Na/c13-7-4-8(14)12(24(21,22)23)5-9(7)15-16-10-3-6(17(19)20)1-2-11(10)18;/h1-5,18H,13-14H2,(H,21,22,23);/q;+1/p-1/b16-15+;
PBT status of the assessed substance:
the substance is not PBT / vPvB

Results of detailed PBT / vPvB assessment

Persistence

Evidence of non-P / non-vP properties
Screening criteria
Remark:
The substance is also considered not-readily biodegradable.
Criteria based on Annex XIII of REACH
Other evidence of non-P / non-vP properties
Remark:
Potential P or vP
Conclusion
Conclusion on P / vP properties:
No conclusion can be reached based on available information

Bioaccumulation

Evidence of non-B / non-vB properties
Screening criteria
Not B and not vB based on: Log Kow ≤ 4.5
Remark:
The experimental Log Pow, based on the OECD117 method, is =< 0.3
Furthermore, the substance has a high solubility 64.63 g/L at 20.0 ± 0.5 °C.                                                                                                                              
Criteria based on Annex XIII of REACH
Not B and not vB based on: BCF ≤ 2,000 L/kg
Remark:
BCF for ionic compounds are predicted as 3.162 L/Kg (log Kow < 5.0), and it can be assumed that the substance has not a potential adsorption property on sediment and soil compartments.
Conclusion
Conclusion on B / vB properties:
not B/vB

Toxicity

Evidence of non-T properties
Criteria based on Annex XIII of REACH
Evidence of T properties
Conclusion
Conclusion on T properties:
No conclusion can be reached based on available information