Also available in 1 mg, 10 mg, 25 mg, 50 mg, 100 mg and bulk. Please contact Fisher for quotes. KYN-101 is an orally active and selective aryl hydrocarbon receptor (AHR) inhibitor with anticancer activity. KYN-101 decreases CYP1A1 mRNA expression and can be used in the study of breast cancer and acute myeloid leukemia. KYN-101 is an orally active and selective aryl hydrocarbon receptor (AHR) inhibitor with anticancer activity. Purity 99.39%