Xanthopterin hydrate 是东方大黄蜂翅膀中黄色颗粒的主要成分，是一种非共轭的蝶啶天然产物，在 386/456 nm 处产生特征性的激发光最大值。 它可抑制RNA合成，引起大鼠肾脏生长和肥大。

Xanthopterin Hydrate is isolated from butterfly wings and could replace folic acid in the nutrition of many animal species.

Human mammary carcinoma MCF-7 cell line responsiveness to the pteridines xanthopterin and isoxanthopterin was studied using the MTS assay for measurement of cell viability. The pteridines were tested at concentrations ranging from 7.8 to 500 μM singly and in 11 isoxanthopterin:xanthopterin ratios. IC50s of xanthopterin and isoxanthopterin were 109±13 μM (mean±SEM of y estimate) and 103±9 μM, respectively.

5979-01-1

C6H7N5O3

197.15

DMSO:4 mg/mL (20.29 mM),ultrasonic and warming and heat to 80°C
Powder: -20°C for 3 years
In solvent: -80°C for 2 years