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Water solubility

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Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
23-07-2018 – 26-07-2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard test guidelines
Reference:
Composition 0
Qualifier:
according to
Guideline:
other: spectrophotometric analytical method
Principles of method if other than guideline:
The water solubility determination of test substance tetrasodium 7-amino-4-hydroxy-3-[(E)-2-{2-methoxy-5-methyl-4-[2-
(sulfonatooxy)ethanesulfonyl]phenyl}diazen-1-yl]-8-[(E)-2-{2-sulfonato-4-[2- (sulfonatooxy)ethanesulfonyl]phenyl}diazen-1-yl]naphthalene-2-sulfonate (CAS No. 503155-49-5 ) was done as per the spectrophotometric analytical method
GLP compliance:
no
Type of method:
other: spectrophotometric analytical method
Test material information:
Composition 1
Specific details on test material used for the study:
- Name of test material : 2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-3-[[2-methoxy-5-methyl-4-[[2-(sulfooxy)ethyl]sulfonyl] phenyl]azo]-8-[[2-sulfo-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt
- Molecular formula : C28H25N5Na4O20S6
- Molecular weight : 1035.87 g/mol
- Smiles notation : Cc1cc(N=Nc2c(S(=O)(=O)O{-}.[Na]{+})cc3c(ccc(N)c3N=Nc3ccc(S(=O)(=O)CCOS(=O)(=O)O{-}.[Na]{+})cc3S(=O)(=O)O{-}.[Na]{+})c2O)c(OC)cc1S(=O)(=O)CCOS(=O)(=O)O{-}.[Na]{+}
- Substance type : Organic
- Physical state : Solid
Key result
Water solubility:
184.62 mg/L
Conc. based on:
test mat.
Temp.:
25 °C
Remarks on result:
other: No other detail available
Conclusions:
The water solubility determination of test substance tetrasodium 7-amino-4-hydroxy-3-[(E)-2-{2-methoxy-5-methyl-4-[2-
(sulfonatooxy)ethanesulfonyl]phenyl}diazen-1-yl]-8-[(E)-2-{2-sulfonato-4-[2- (sulfonatooxy)ethanesulfonyl]phenyl}diazen-1-yl]naphthalene-2-sulfonate (CAS No. 503155-49-5 ) was done as per the spectrophotometric analytical method is 184.620 g/L at 25 Deg C.
From this solubility value it is concluded that chemical is very soluble in water.
Executive summary:

The water solubility determination of test substance  tetrasodium 7 -amino-4 -hydroxy-3 -[(E)-2 -{2 -methoxy-5 -methyl-4 -[2 -

(sulfonatooxy)ethanesulfonyl]phenyl}diazen-1 -yl]-8 -[(E)-2 -{2 -sulfonato-4 -[2 - (sulfonatooxy)ethanesulfonyl]phenyl}diazen-1 -yl]naphthalene-2 -sulfonate (CAS No. 503155 -49 -5 ) was done as per the spectrophotometric analytical method is 184.620 g/L at 25 Deg C.

From this solubility value it is concluded that chemical is very soluble in water.

Description of key information

The water solubility determination of test substance  tetrasodium 7 -amino-4 -hydroxy-3 -[(E)-2 -{2 -methoxy-5 -methyl-4 -[2 -

(sulfonatooxy)ethanesulfonyl]phenyl}diazen-1 -yl]-8 -[(E)-2 -{2 -sulfonato-4 -[2 - (sulfonatooxy)ethanesulfonyl]phenyl}diazen-1 -yl]naphthalene-2 -sulfonate (CAS No. 503155 -49 -5 ) was done as per the spectrophotometric analytical method is 184.620 g/L at 25 Deg C.

From this solubility value it is concluded that chemical is very soluble in water.

Key value for chemical safety assessment

Water solubility:
184.62 g/L
at the temperature of:
25 °C

Additional information

The water solubility determination of test substance  tetrasodium 7 -amino-4 -hydroxy-3 -[(E)-2 -{2 -methoxy-5 -methyl-4 -[2 -

(sulfonatooxy)ethanesulfonyl]phenyl}diazen-1 -yl]-8 -[(E)-2 -{2 -sulfonato-4 -[2 - (sulfonatooxy)ethanesulfonyl]phenyl}diazen-1 -yl]naphthalene-2 -sulfonate (CAS No. 503155 -49 -5 ) was done as per the spectrophotometric analytical method is 184.620 g/L at 25 Deg C.

From this solubility value it is concluded that chemical is very soluble in water.