Citrus Bioflavonoids

Hesperetin (listed as Citrus Bioflavonoids, CAS 520-33-2) is a pharmaceutical-grade flavonoid supplied, rather than manufactured, by Chengdu Runde Pharmaceutical Co., Ltd. under the company's in-house standards, appearing as a straw-yellow needle crystalline powder. The supplier describes anti-tumor-promoting, antibacterial, and antiviral activity, along with effects on steroid dehydrogenase inhibition and in vitro liver cell DNA synthesis, and notes potential use as a plant growth promoter. It is distributed across a broad international market spanning the Americas, Europe, Australasia, Asia, the Middle East, and Africa.