16beta,17-Dihydroxy-ent-kaurane-19-oic acid as an anti-HIV principle, it showed significant activity against HIV replication in H9 lymphocyte cells with an EC50 value of 0.8 microgram/mL. It also possesses the activities of decompression and blood viscosity depression.

Phytochemical analysis of the fruits of Annona squamosa yielded 12 known kaurane derivatives (1-11, 13) and two new kaurane diterpenoids, which have been named annosquamosin A (16 beta-hydroxy-17-acetoxy-ent-kauran-19-al) (12) and annosquamosin B (19-nor-ent-kaurane-4 alpha,16 beta,-17-triol) (14). The structures of the new compounds were established by spectral analyses and chemical evidence[1]

74365-74-5

C20H32O4

336.47

(< 1 mg/ml refers to the product slightly soluble or insoluble )
Powder: -20°C for 3 years
In solvent: -80°C for 2 years