Also available in 1 mL, 25 mg, 50 mg, 100 mg and bulk. Please contact Fisher for quotes. Gossypol acetic acid (AT101), a polyphenolic compound isolated from cottonseeds, binds with Bcl-2, Bcl-xL, Mcl-1, and does not inhibit BIR3 domain and BID. Purity 98.57%