2,6-Diamino-4,5,6,7-tetrahydrobenzothiazole

Water solubility

Administrative data

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Study period:

28 september 2004

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: The study was conducted in GLP compliance and in accordance with several internationally established guidelines (OECD, EEC, EPA, see below).

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2004

Report date:

2004

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.6 (Water Solubility)

Test guideline 3

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7840 (Water Solubility)

GLP compliance:

yes (incl. QA statement)

Type of method:

flask method

Test material

Test material information

Constituent 1

Reference substance name:

SND 919 Precursor 2 (SND 855 BS)

IUPAC Name:

SND 919 Precursor 2 (SND 855 BS)

Test material form:

solid: particulate/powder

Remarks:

migrated information: powder

Details on test material:

- Name of test material (as cited in study report): SND 919 Precursor 2 (SND 855 BS); SND 919 Precursor 2 (SND 855)
- Molecular formula (if other than submission substance): C7H11N3S
- Molecular weight (if other than submission substance): 169.25
- Structural formula attached as image file (if other than submission substance): see Reference substance
- CAS number: 104617-49-4
- Physical state: grey solid powder
- Analytical purity: 98.0%
- Purity test date: 17 october 2004
- Lot/batch No.: 14
- Expiration date of the lot/batch: october 2005
- Storage condition of test material: at room temperature, dark and dry

Results and discussion

Water solubility

Key result

Water solubility:

8.8 g/L

Temp.:

20 °C

pH:

ca. 10

Any other information on results incl. tables

The purpose of this study was to evaluate the solubility of SND 919 Precursor 2 (SND 855 BS) in water which is specified by the saturation mass concentration of the test item in water at 20 +-1°C.

Results of the determination of SND 919 Precursor 2 (SND 855 BS) concentrations

Measured concentration after 24 hours (g/L)	Dilution factor	pH	Measured concentration after 48 hours (g/L)	Dilution factor	pH	Measured concentration after 72 hours (g/L)	Dilution factor	pH	Solubility of the test item (g/L)
9.0	1000	10.51	8.8	1000	10.60	9.0	1000	10.54	8.8 +-0.3
8.8	1000	10.50	8.6	1000	10.59	8.9	1000	10.55
8.5	1000	10.48	8.6	1000	10.58	8.8	1000	10.56
Mean: 8.8	-	-	Mean: 8.7	-	-	Mean: 8.9	-	-

Applicant's summary and conclusion

Conclusions:

Interpretation of results (migrated information): soluble (1000-10000 mg/L)
In conclusion, the water solubility of SND 919 Precursor 2 (SND 855 BS) was determined to be 8.8 +- 0.3 g/L (confidence interval) at 20°C +-1°C using the shake flask method for the performance of the main test.