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Description of key information

Adsorption/desorption:

The Soil Adsorption Coefficient i.e. Koc value of test chemical 2-amino-4-acetamido-5-[(E)-2-(4-{[2-(sulfooxy)ethane]sulfonyl}phenyl)diazen-1-yl]benzoic acid sodium (CAS No. 94158 -82 -4) was estimated using EPI suite KOCWIN Program (v2.00) as 13.5 L/kg (log Koc= 1.1302) by means of MCI method at 25 deg. C. This log Koc value indicates that test chemical 2-amino-4-acetamido-5-[(E)-2-(4-{[2-(sulfooxy)ethane]sulfonyl}phenyl)diazen-1-yl]benzoic acid sodium has negligible sorption to soil and therefore have rapid migration potential to ground water.

Additional information

Adsorption/desorption:

Results of two different predicted data for the target compound of 2-amino-4-acetamido-5-[(E)-2-(4-{[2-(sulfooxy)ethane]sulfonyl}phenyl)diazen-1-yl]benzoic acid sodium (CAS No. 94158-82-4) were reviewed for the Adsorption end points which are summarized as below.

First prediction done by using EPI suite KOCWIN Program (v2.00) the Soil Adsorption Coefficient i.e. Koc value of test chemical 2-amino-4-acetamido-5-[(E)-2-(4-{[2-(sulfooxy)ethane]sulfonyl}phenyl)diazen-1-yl]benzoic acid sodium (CAS No. 94158-82-4) was estimated to be 13.5 L/kg (log Koc= 1.1302) by means of MCI method at 25 deg. C.

In a supporting study another prediction done by using Adsorption Coefficient module (v12.1.0.50374) program of (ACD (Advanced Chemistry Development)/I-Lab predictive module, 2017) module the Soil Adsorption Coefficient i.e Koc value of test substance 2-amino-4-acetamido-5-[(E)-2-(4-{[2-(sulfooxy)ethane]sulfonyl}phenyl)diazen-1-yl]benzoic acid sodium (CAS no. 94158-82-4) was estimated as Koc 1.0 dimensionless (log Koc= 0).

On the basis of above results for target chemical 2-amino-4-acetamido-5-[(E)-2-(4-{[2-(sulfooxy)ethane]sulfonyl}phenyl)diazen-1-yl]benzoic acid sodium (CAS No. 94158-82-4)(from EPI suite and ACD labs, 2017) it can be concluded that the log Koc value of test substance 2-amino-4-acetamido-5-[(E)-2-(4-{[2-(sulfooxy)ethane]sulfonyl}phenyl)diazen-1-yl]benzoic acid sodium ranges from 0 to 1.15 indicating that the chemical has negligible sorption to soil and sediment and therefore have rapid migration potential to ground water.