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EC number: 299-370-6 | CAS number: 93859-32-6
Endpoint summary
Administrative data
Description of key information
Additional information
Biodegradation
Biodegradation in water: screening tests
The predicted data for the test compoundSodium 5-(aminosulphonyl)-2-(7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl)benzoxazolesulphonate(CAS No. 93859-32-6) were reviewed for the biodegradation end point which are summarized as below:
Biodegradation in water ability was predicted (SSS QSAR prediction model, 2016) for the test substanceSodium 5-(aminosulphonyl)-2-(7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl)benzoxazolesulphonate(CAS No. 93859-32-6) using the SSS QSAR prediction model. The ready biodegradability of the test substance Sodium 5 -(aminosulphonyl)-2-(7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl)benzoxazole
sulphonate was estimated as 45.29% in 28 days by using O2 consumption parameter. This result indicates that Sodium 5-(aminosulphonyl)-2-(7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl)benzoxazolesulphonatewas estimated to be not readily biodegradable in water.
Estimation Programs Interface Suite (EPI suite, 2016) was run to predict the biodegradation potential of the test compoundSodium 5-(aminosulphonyl)-2-(7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl)benzoxazolesulphonate(CAS No. 93859-32-6). The screening test ready biodegradability of the substance was calculated using the software BIOWIN v4.10. The results indicate thatSodium 5-(aminosulphonyl)-2-(7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl)benzoxazolesulphonateis expected to be not readily biodegradable in nature.
On the basis of above results for target substance, it can be concluded that the test substance can be expected to be not readily biodegradable in nature.
Biodegradation in water and sediment: simulation tests
Estimation Programs Interface (EPI) Suite (2016) prediction model was run to predict the half-life in water and sediment for the test compoundSodium 5-(aminosulphonyl)-2-(7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl)benzoxazolesulphonate(CAS No. 93859-32-6). Half-life ofSodium 5-(aminosulphonyl)-2-(7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl)benzoxazolesulphonatein water is estimated to be 60 days (1440 hrs) while in sediment it is 541.66 days (13000 hrs). Based on these half-life value ofSodium 5 -(aminosulphonyl)-2-(7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl)
benzoxazolesulphonate, it is concluded that the chemical is persistent in both water and sediment.
Biodegradation in soil
Based on EPI prediction Level III Fugacity Model (EPI suite, 2016), the estimated half-life period ofSodium 5-aminosulphonyl)-2-(7-(diethylamino)
-2-oxo-2H-1-benzopyran-3-yl)benzoxazolesulphonate(CAS No. 93859-32-6) in soil was obtained to be 120 days (2880 hrs). Based on this half-life value ofSodium 5-(aminosulphonyl)-2-(7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl)benzoxazolesulphonate, it is concluded that the chemical is not persistent in the soil environment.On the basis of available information for the target substance, the test substance can be considered to be not readilybiodegradable in nature
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