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EC number: 202-057-9 | CAS number: 91-29-2
Endpoint summary
Administrative data
Description of key information
Adsorption/desorption
The Soil Adsorption Coefficient i.e Koc value of test substance 2-[(4-aminophenyl)amino]-5-nitrobenzenesulfonic acid was estimated using Adsorption Coefficient module (v12.1.0.50374) program as Koc 1.0 (log Koc= 0) (ACD (Advanced Chemistry Development)/I-Lab predictive module, 2017). This Koc value indicates that the test substance 2-[(4-aminophenyl)amino]-5-nitrobenzenesulfonic acid has a negligible sorption to soil and sediment and therefore have rapid migration potential to ground water.
Additional information
Adsorption/desorption
Various predicted data for the target compound 2-[(4-aminophenyl)amino]-5-nitrobenzenesulfonic acid (CAS No. 91-29-2) were reviewed for the adsorption end point which are summarized as below:
The Soil Adsorption Coefficient i.e Koc value of test substance 2-[(4-aminophenyl)amino]-5-nitrobenzenesulfonic acid was estimated using Adsorption Coefficient module (v12.1.0.50374) program as Koc 1.0 (log Koc= 0)(ACD (Advanced Chemistry Development)/I-Lab predictive module, 2017). This Koc value indicates that the test substance 2-[(4-aminophenyl)amino]-5-nitrobenzenesulfonic acid has a negligible sorption to soil and sediment and therefore have rapid migration potential to ground water.
Using the KOCWIN Program(v2.00) of Estimation Programs Interface (EPI Suite, 2017) the soil adsorption coefficient i.e Koc value of 2 -[(4 -aminophenyl)amino]-5 -nitrobenzenesulfonic acid was estimated to be 144.2 L/kg (log Koc=2.1589) by means of MCI method (at 25 deg C). This Koc value indicates that the substance 2 -[(4 -aminophenyl)amino]-5 -nitrobenzenesulfonic acid has a low sorption to soil and sediment and therefore have moderate migration potential to ground water.
In an another prediction done by using ChemSpider Database (2017), theSoil Adsorption Coefficient i.e Koc value of test substance 2-[(4-aminophenyl)amino]-5-nitro benzenesulfonic acid (CAS no. 91 -29 -2) was estimated. The adsorption coefficient (Koc) value of substance 2-[(4-aminophenyl)amino]-5-nitrobenzenesulfonic acid was estimated to be 1 at pH 5.5 and 7.4, respectively. This Koc value indicates that the substance 2-[(4-aminophenyl)amino]-5-nitrobenzenesulfonic acid has a negligible sorption to soil and sediment and therefore have rapid migration potential to groundwater.
Additional soil adsorption coefficient i.e Koc value of test chemical2 -[(4 -aminophenyl)amino] -5 -nitrobenzenesulfonic acid (CAS No. 91 -29 -2)was estimated using the SciFinder database (American Chemical Society (ACS), 2017).The estimated soil adsorption coefficient i.e Koc value of 2 -[(4 -aminophenyl)amino]-5 -nitrobenzenesulfonic acid was estimated to be 1 (at 25 deg C). This Koc value indicates that the substance 2 -[(4 -aminophenyl)amino]-5 -nitrobenzenesulfonic acid has a negligible sorption to soil and sediment and therefore have rapid migration potential to ground water.
On the basis of above overall results for target chemical 2-[(4-aminophenyl)amino]-5-nitrobenzenesulfonic acid (from ACD labs, EPI suite,ChemSpider and SciFinder database,2017), it can be concluded that the Koc value of test substance 2 -[(4 -aminophenyl)amino]-5 -nitrobenzenesulfonic acid ranges from 1 – 144.2 indicating that the test chemical has a negligible sorption to soil and sediment and therefore have a rapid migration potential to groundwater.
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