Sorafenib Tosylate Antineoplastic Agents - ZhongbeiNorthlandBioCh ( China ) - Offers to Sell and Export - Thursday 13 October 2011 3:44 am - sorafenib tosylate antineoplastic agents cas no 475207 59 1 284461 73 0 base molecular formula c21h16clf3n4o3 c7h8so3 molecular weight 637 03 appearance off white crystalline powde...