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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 229-313-2 | CAS number: 6471-49-4
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Authorative database
- Justification for type of information:
- data is from Authorative database
- Qualifier:
- according to guideline
- Guideline:
- other: estimated data
- Principles of method if other than guideline:
- Estimation of water solubility of test chemical 3-hydroxy-4-[(2-methoxy-5-nitrophenyl)azo]-N-(3-nitrophenyl)naphthalene-2-carboxamide (CAS no. 6471-49-4)
- GLP compliance:
- not specified
- Type of method:
- other: estimated data
- Specific details on test material used for the study:
- - Name of test material : 3-hydroxy-4-[(E)-2-(2-methoxy-5-nitrophenyl)diazen-1-yl]-N-(3-nitrophenyl)naphthalene-2-carboxamide
- Common name : 3-hydroxy-4-[(2-methoxy-5-nitrophenyl)azo]-N-(3-nitrophenyl)naphthalene-2-carboxamide, C.I. Pigment Red 23
- Molecular formula : C24H17N5O7
- Molecular weight : 487.4263 g/mol
- Smiles notation : c12c(c(c(cc1cccc2)C(=O)Nc1cc(ccc1)[N+](=O)[O-])O)/N=N/c1c(ccc(c1)[N+](=O)[O-])OC
- InChl : 1S/C24H17N5O7/c1-36-21-10-9-17(29(34)35)13-20(21)26-27-22-18-8-3-2-5-14(18)11-19(23(22)30)24(31)25-15-6-4-7-16(12-15)28(32)33/h2-13,30H,1H3,(H,25,31)/b27-26+
- Substance type : Organic
- Physical state : Solid - Key result
- Water solubility:
- 0.007 mg/L
- Conc. based on:
- test mat.
- Temp.:
- 25 °C
- Remarks on result:
- other: No detail available
- Conclusions:
- Water solubility of 3-hydroxy-4-[(2-methoxy-5-nitrophenyl)azo]-N-(3-nitrophenyl)naphthalene-2-carboxamide (CAS no. 6471-49-4) at 25 deg C was estimated to be 0.0075 mg/l.
- Executive summary:
Water solubility of 3 -hydroxy-4 -[(2 -methoxy-5 -nitrophenyl)azo]-N-(3 -nitrophenyl)naphthalene-2 -carboxamide CAS no. 6471 -49 -4) at 25 deg C was estimated to be 0.0075 mg/l.
From above solubility value, chemical 3 -hydroxy-4 -[(2 -methoxy-5 -nitrophenyl)azo]-N-(3 -nitrophenyl)naphthalene-2 -carboxamide CAS no. 6471 -49 -4) was considered to be insoluble in water.
Reference
Description of key information
Water solubility of 3-hydroxy-4-[(2-methoxy-5-nitrophenyl)azo]-N-(3-nitrophenyl)naphthalene-2-carboxamide (CAS no. 6471-49-4) at 25 deg C was estimated to be 0.0075 mg/l.
Key value for chemical safety assessment
- Water solubility:
- 0.007 mg/L
- at the temperature of:
- 25 °C
Additional information
Water solubility of 3 -hydroxy-4 -[(2 -methoxy-5 -nitrophenyl)azo]-N-(3 -nitrophenyl)naphthalene-2 -carboxamide CAS no. 6471 -49 -4) at 25 deg C was estimated to be 0.0075 mg/l.
From above solubility value, chemical 3 -hydroxy-4 -[(2 -methoxy-5 -nitrophenyl)azo]-N-(3 -nitrophenyl)naphthalene-2 -carboxamide CAS no. 6471 -49 -4) was considered to be insoluble in water.
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.
