6,11-Dihydrodibenzo(b,e)thiepin-2-acetic acid 5,5-dioxide sodium salt 6H,11H-Dibenzo(b,e)thiepin-5,5-dioxide-2-ylacetic acid sodium salt Dibenzo(b,e)thiepin-2-acetic acid, 6,11-dihydro-, 5,5-dioxide, sodium salt HQ2526000