6,11-Dihydrodibenzo(b,e)thiepin-2-acetic acid 5-oxide sodium salt 6H,11H-Dibenzo(b,e)thiepin-5-oxide-2-ylacetic acid sodium salt Dibenzo(b,e)thiepin-2-acetic acid, 6,11-dihydro-, 5-oxide, sodium salt HQ2527000