You can rest assured to buy N-(2-Amino-4,6-dichloro-5-pyrimidinyl)formamide CAS 171887-03-9 from our factory. CAS 171887-03-9 is an important intermediate of abacavir. Abacavir is a new anti-AIDS drug, which is a new carbocycli2 '-deoxyguanosine nucleoside drug. Its oral bioavailability is high, and it is easy to penetrate into the CNS Chemicalbook system. The drug is a nucleoside reverse transcriptase preparation from Glaxo Wilcome that was approved for market entry through the FDA's fast-track approval process in December 1998. In April 2004, the drug was approved by FDA for anti-HIV infection.