1H-2,1,3-Benzothiadiazin-4(3H)-one, 2,2-dioxide, sodium salt 25057-89-0 3-Isopropyl-1H-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide, sodiumsalt 3-Isopropyl-1H-2,1,3-benzothiadiazin-4(3H)-one-2,2-dioxide, sodium salt 50723-80-3 Caswell No. 509D EINECS 256-735-4 EPA Pesticide Chemical Code 103901 Sodium bentazon