43119-38-6 6,11-Dihydrodibenzo(b,e)thiepin-2-acetic acid 5,5-dioxide 6H,11H-Dibenzo(b,e)thiepin-2-ylacetic acid 5,5-dioxide BRN 1393235 Dibenzo(b,e)thiepin-2-acetic acid, 6,11-dihydro-, 5,5-dioxide