Table 1.
The environmental toxicity values of compound 4a and the pioneering compounds.
| Compounds | Environmental Toxicity | cLog P | |
|---|---|---|---|
| Bioconcentration Factors * | IGC50 ** | ||
| Isoindoline-1,3-dione | 0.458 | 2.557 | 0.536 | 
| 4-Aminobenzohydrazide | 0.495 | 2.763 | −0.753 | 
| N-(4-(Hydrazinecarbonyl)phenyl)benzamide | 0.469 | 3.337 | 1.339 | 
| Compound 4a | 0.365 | 3.488 | 2.674 | 
* The unit of BCF is log10(L/kg). ** 48 h Tetrahymena pyriformis IGC50 (concentration of the test chemical in water in mg/L that causes 50% growth inhibition to Tetrahymena pyriformis after 48 h). The unit of IGC50 is −log10[(mg/L)/(1000 × MW)].