1,3-bis(2-methylphenyl)guanidinium m-[[p-anilinophenyl]azo]benzenesulfonate

Water solubility

Administrative data

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2020

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference

Reference Type:

other company data

Title:

Unnamed

Report date:

2020

Materials and methods

Test guideline

Qualifier:

no guideline followed

Principles of method if other than guideline:

Spectrometry of the aqueous extract from the test item

GLP compliance:

no

Type of method:

other: spectrometry

Test material

Test material information

1

Reference substance name:

1,3-bis(2-methylphenyl)guanidinium m-[[p-anilinophenyl]azo]benzenesulfonate

EC Number:

871-500-1

Cas Number:

2268679-24-7

Molecular formula:

C33H32N6SO3

IUPAC Name:

1,3-bis(2-methylphenyl)guanidinium m-[[p-anilinophenyl]azo]benzenesulfonate

Test material form:

solid: particulate/powder

Results and discussion

Water solubility

Key result

Water solubility:

ca. 166 mg/L

Temp.:

22 °C

Remarks on result:

other: pH not mentioned

Any other information on results incl. tables

Concentration of the test item in the aqueous extract

	1 g of test item	0.25 g of test item
Filtration	0.45 µm	0.45 µm
Dilution Factor	10	10
Result of the spectrometric analysis   (Spectro DU640 BECKMAN)	DOmeasuredat 425 nm = 0.3412 within the matrix [methanol-water 50/50]	DOmeasuredat 427 nm = 0.3093 within the matrix [methanol-water 50/50]
Calculated Concentration of reference	Concref= 19.48 mg/L	Concref= 19.48 mg/L
DO of reference	DOrefat 426 nm = 0.8381	DOrefat 426 nm = 0.8381
Quantity of MG-F in water	=79 mg/L	=72 mg/L
Mean of the 2 tests	75 mg/L

Applicant's summary and conclusion

Conclusions:

The solubilty of the test item in water is 75 mg/L by spectrometry.