Benzene-1,4-diammonium sulphate

Hydrolysis

Link to relevant study record(s)

Reference

Endpoint:

hydrolysis

Type of information:

read-across from supporting substance (structural analogue or surrogate)

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Remarks:

experimental data of read across substances

Justification for type of information:

Data for the target chemical is summarized based on the structurally similar read across chemicals

Reason / purpose for cross-reference:

read-across source

Reason / purpose for cross-reference:

read-across source

Qualifier:

according to guideline

Guideline:

other: refer principle below

Principles of method if other than guideline:

WoE report is based on two hydrolysis studies as- 1. and 2.

GLP compliance:

not specified

Specific details on test material used for the study:

- Name of test material (IUPAC name): Benzene-1,4-diammonium sulphate- Molecular formula: C6H8N2.H2O4S- Molecular weight: 206.221 g/mol- Smiles notation: S(=O)(=O)(O)O.c1(ccc(cc1)N)N- InChI: 1S/C6H8N2.H2O4S/c7-5-1-2-6(8)4-3-5;1-5(2,3)4/h1-4H,7-8H2;(H2,1,2,3,4)- Substance type: Organic - Physical state: Solid

Radiolabelling:

not specified

Analytical monitoring:

not specified

Transformation products:

not specified

pH:

7

Hydrolysis rate constant:

2 900 000 000 s-1

DT50:

276 d

Type:

not specified

Remarks on result:

other: other details not available

DT50:

> 30 d

Remarks on result:

other: at pH 5,7 and 9

Validity criteria fulfilled:

not specified

Conclusions:

On the basis of the experimental studies of the structurally and functionally similar read across chemical and applying the weight of evidence approach, the hydrolysis half-life value of the test chemical Benzene-1,4-diammonium sulphate (16245-77-5) can be expected to be > 30 days at pH 5, 7 and 9 and the hydrolysis rate constant can be 2.9X10+9 cm3/mol/sec indicating negligible hydrolysis. Thus, based on this half-life value, it can be concluded that the test chemical Benzene-1,4-diammonium sulphate (16245-77-5) is not hydrolysable.

Executive summary:

Data available for the structurally and functionally similar read across chemicals has been reviewed to determine the half-life of the test chemical Benzene-1,4-diammonium sulphate (16245-77-5).The studies are as mentioned below.

In first study which is reviewed from authoritative database (HSDB) the hydrolysis rate constant of test chemical obtained was 2.9X10+9 L/mol-sec( L/mol/sec and the half life of hydrolysis observed at pH 7 was 276 days . Since half life of hydrolysis is more than 10 days so it is concluded that test chemical shows negligible hydrolysis that means it is not hydrolysable.

Another study was also reviewed from authoritative database (HSDB) in this study the half life of hydrolysis of test chemical was determined to be > 30 days at pH 5, 7 and 9. On the basis of this half life value it is concluded that test chemical is not hydrolysable i.e., stable to hydrolysis in water.

On the basis of the experimental studies of the structurally and functionally similar read across chemical and applying the weight of evidence approach, the hydrolysis half-life value of the test chemical Benzene-1,4-diammonium sulphate (16245-77-5) can be expected to be > 30 days at pH 5, 7 and 9 and the hydrolysis rate constant can be 2.9X10+9 cm3/mol/sec indicating negligible hydrolysis. Thus, based on this half-life value, it can be concluded that the test chemical Benzene-1,4-diammonium sulphate (16245-77-5)is not hydrolysable.

Description of key information

On the basis of the experimental studies of the structurally and functionally similar read across chemical and applying the weight of evidence approach, the hydrolysis half-life value of the test chemical Benzene-1,4-diammonium sulphate (16245-77-5) can be expected to be > 30 days at pH 5, 7 and 9 and the hydrolysis rate constant can be 2.9X10+9 cm3/mol/sec indicating negligible hydrolysis. Thus, based on this half-life value, it can be concluded that the test chemical Benzene-1,4-diammonium sulphate (16245-77-5) is not hydrolysable.

Additional information

Data available for the structurally and functionally similar read across chemicals has been reviewed to determine the half-life of the test chemical Benzene-1,4-diammonium sulphate (16245-77-5).The studies are as mentioned below.

In first study which is reviewed from authoritative database (HSDB) the hydrolysis rate constant of test chemical obtained was 2.9X10+9 L/mol-sec( L/mol/sec and the half life of hydrolysis observed at pH 7 was 276 days . Since half life of hydrolysis is more than 10 days so it is concluded that test chemical shows negligible hydrolysis that means it is not hydrolysable.

Another study was also reviewed from authoritative database (HSDB) in this study the half life of hydrolysis of test chemical was determined to be > 30 days at pH 5, 7 and 9. On the basis of this half life value it is concluded that test chemical is not hydrolysable i.e., stable to hydrolysis in water.

On the basis of the experimental studies of the structurally and functionally similar read across chemical and applying the weight of evidence approach, the hydrolysis half-life value of the test chemical Benzene-1,4-diammonium sulphate (16245-77-5) can be expected to be > 30 days at pH 5, 7 and 9 and the hydrolysis rate constant can be 2.9X10+9 cm3/mol/sec indicating negligible hydrolysis. Thus, based on this half-life value, it can be concluded that the test chemical Benzene-1,4-diammonium sulphate (16245-77-5)is not hydrolysable.