(4-ARSENOSOPHENYL)UREA 1-(p-Arsenosophenyl)urea 2490-89-3 Arsine, 4-carbamidophenyloxo- Carbarsone oxide Chemotherapy center No. 606 NSC12693 Urea, (4-arsenosophenyl)- Urea, (p-arsenosophenyl)- Urea, 1-(p-arsenosophenyl) WLN: ZVMR D-AS-O WLN: ZVR DO-AS-HH p-Carbamidophenyl arsenous acid p-Carbamidophenyl arsenous oxide