Chemical name -β-D-ribofuranose base-1H-1, 2,4, - triazole -3 - carboxamide Molecular Formula C8H12N4O5 Molecular Weight244.21 Properties This product is a white crystalline powder, odorless, tasteless, soluble in water. Pharmacologyactions The product have a broad-spectrum anti-viral activity for RNA and DNA viruses , the rapid phosphorylation appear after that it go into the infected cells, competitive inhibition of viral synthesis enzymes, damage viral RNA and protein synthesis, in order to stop inhibitviral replication . Indication for the fight against bird flu, bursal disease, fowl pox, egg drop syndrome, encephalomyelitis.