Trisodium 5-[[5-methyl-4-[(4-nitro-2-sulphonatophenyl)azo]-2-(3-sulphonatopropoxy)phenyl]azo]salicylate

Water solubility

Administrative data

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

OECD 105, preliminary test

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2016

Report date:

2016

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

Type of method:

other: OECD 105 preliminary test

Test material

Test material information

Constituent 1

Reference substance name:

Trisodium 5-[[5-methyl-4-[(4-nitro-2-sulphonatophenyl)azo]-2-(3-sulphonatopropoxy)phenyl]azo]salicylate

EC Number:

277-753-9

EC Name:

Trisodium 5-[[5-methyl-4-[(4-nitro-2-sulphonatophenyl)azo]-2-(3-sulphonatopropoxy)phenyl]azo]salicylate

Cas Number:

74186-17-7

Molecular formula:

C23H21N5O12S2.3Na

IUPAC Name:

trisodium 2-hydroxy-5-({5-methyl-4-[(4-nitro-2-sulfonatophenyl)diazenyl]-2-(3-sulfonatopropoxy)phenyl}diazenyl)benzoate

Results and discussion

Water solubility

Key result

Water solubility:

> 1 000 g/L

Temp.:

20 °C

pH:

ca. 9.6

Any other information on results incl. tables

Table 1: results of preliminary test

water for 0.1 g test item [mL]	0.1	0.5	1	2	10	100	150
approximate solubility [g/L]	> 1000	200 -1000	100 - 200	50 - 100	10 - 50	1 – 10	< 1
visual evaluation	*)	soluble	soluble	soluble	soluble	soluble	soluble

*) the quantity of water was not sufficient to achieve a solution

Applicant's summary and conclusion

Conclusions:

Interpretation of results (migrated information): very soluble (> 10000 mg/L)