Registration Dossier

Environmental fate & pathways

Hydrolysis

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
hydrolysis
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Justification for type of information:
Estimated data generated using the EPI Suite model developed by the USEPA.
Qualifier:
according to
Guideline:
other: Modeling database
Principles of method if other than guideline:
Determination of first order hydrolysis rate constant and half live of test chemical using the HYDROWIN v2.00 of EPI suite.
GLP compliance:
not specified
Radiolabelling:
not specified
Analytical monitoring:
not specified
Estimation method (if used):
HYDROWIN v2.00
Positive controls:
not specified
Negative controls:
not specified
Transformation products:
not specified
Key result
Temp.:
25 °C
DT50:
> 1.76 - < 25 min
Type:
(pseudo-)first order (= half-life)
Remarks on result:
other: Hydrolysis rate constant ranges from 0.000462 to 0.00657 /sec

HYDROWIN Program (v2.00) Results:

================================

SMILES : O=S(=O)(c(ccc(c1ccc2)c2)c1)CL

CHEM : 2-Naphthalenesulfonyl chloride

MOL FOR: C10 H7 CL1 O2 S1

MOL WT : 226.68

--------------------------- HYDROWIN v2.00 Results ---------------------------

Hydrolyzable Function detected: Sulfony Halide (aromatic)

R-S(=O)(=O)-Halogen (Cl, Br, I, F)

Experimental data are available for a series of sulfonyl chlorides where

the R is a benzene ring with various substituents. First-order

experimental rate constants (25 deg C) range from 0.000462 to 0.00657

per second which correspond to half-lives of 1.76 to 25 minutes.

Validity criteria fulfilled:
not specified
Conclusions:
The half-life of test chemical was determined to be ranges from 1.76 to 25 mins (at 25ᵒC) respectively.
Executive summary:

HYDROWIN v2.00 program of Estimation Programs Interface (2018) prediction model was used to determine the hydrolysis half-life of test chemical. The first order hydrolysis rate constant of test chemical was determined to be ranges from 0.000462 to 0.00657 per second with a corresponding half-lives of 1.76 to 25 mins at 25ᵒC, respectively.

Description of key information

HYDROWIN v2.00 program of Estimation Programs Interface (2018) prediction model was used to determine the hydrolysis half-life of test chemical. The first order hydrolysis rate constant of test chemical was determined to be ranges from 0.000462 to 0.00657 per second with a corresponding half-lives of 1.76 to 25 mins at 25ᵒC, respectively.

Key value for chemical safety assessment

Additional information

HYDROWIN v2.00 program of Estimation Programs Interface (2018) prediction model was used to determine the hydrolysis half-life of test chemical. The first order hydrolysis rate constant of test chemical was determined to be ranges from 0.000462 to 0.00657 per second with a corresponding half-lives of 1.76 to 25 mins at 25ᵒC, respectively.